{"id":10961,"date":"2025-07-22T12:27:45","date_gmt":"2025-07-22T22:27:45","guid":{"rendered":"https:\/\/dod.hawaii.gov\/hiema\/?page_id=10961"},"modified":"2026-05-13T10:29:25","modified_gmt":"2026-05-13T20:29:25","slug":"tsunami","status":"publish","type":"page","link":"https:\/\/dod.hawaii.gov\/hiema\/tsunami\/","title":{"rendered":"Tsunami"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>Note: <\/em><a href=\"https:\/\/dod.hawaii.gov\/hiema\/tsunami-evacuation-zones\/\"><em>To access Tsunami Evacuation Zone maps, click here.<\/em><\/a><\/p>\n\n\n<style>.kb-image10961_598328-a4 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image10961_598328-a4\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-1024x683.jpg\" alt=\"\" class=\"kb-img wp-image-14181\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-1024x683.jpg 1024w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-300x200.jpg 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-768x512.jpg 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-1536x1024.jpg 1536w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-2048x1365.jpg 2048w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-500x333.jpg 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-800x533.jpg 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-1280x853.jpg 1280w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/2011_Tohoku_earthquake_tsunami_in_Miyako-Japan-1920x1280.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><em>In 2011, destructive tsunami waves overtake a seawall in Miyako, Japan. A 9.0-magnitude earthquake off the coast of Tohoku triggered the tsunami, claiming the lives of more than 18,000 people there. In Hawai\u02bbi, tsunami waves measured 12 feet high.<\/em> <em>Photo credit: Public domain\/Miyako City Office.<\/em><\/figcaption><\/figure><\/div>\n\n\n<style>.wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-border-top-left-radius:0px;--kb-nav-dropdown-border-top-right-radius:0px;--kb-nav-dropdown-border-bottom-right-radius:0px;--kb-nav-dropdown-border-bottom-left-radius:0px;--kb-nav-dropdown-border-radius-top:0px;--kb-nav-dropdown-border-radius-right:0px;--kb-nav-dropdown-border-radius-bottom:0px;--kb-nav-dropdown-border-radius-left:0px;--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}.header-desktop-transparent .wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}.item-is-stuck .wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}@media all and (max-width: 1024px){.wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}}@media all and (max-width: 1024px){.header-tablet-transparent .wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}}@media all and (max-width: 1024px){.item-is-stuck .wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}}@media all and (max-width: 767px){.wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}.header-mobile-transparent .wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}.item-is-stuck .wp-block-kadence-navigation14247-cpt-id{--kb-nav-dropdown-toggle-border-left:var(--kb-nav-link-border-left);--kb-nav-top-not-last-link-border-bottom:var(--kb-nav-link-border-bottom);}}<\/style><div class=\"wp-block-kadence-navigation14247-cpt-id kb-nav-desktop-horizontal-layout-standard kb-nav-tablet-horizontal-layout-standard kb-nav-mobile-horizontal-layout-standard navigation-desktop-layout-fill-stretch-false navigation-tablet-layout-fill-stretch-false navigation-mobile-layout-fill-stretch-false navigation-desktop-orientation-horizontal navigation-tablet-orientation-horizontal navigation-mobile-orientation-horizontal wp-block-kadence-navigation\" data-scroll-spy=\"\"><nav class=\"navigation navigation-desktop-style-standard navigation-tablet-style-standard navigation-mobile-style-standard navigation-desktop-dropdown-animation-none navigation-tablet-dropdown-animation-none navigation-mobile-dropdown-animation-none navigation-desktop-collapse-sub-menus-true navigation-tablet-collapse-sub-menus-true navigation-mobile-collapse-sub-menus-true navigation-desktop-parent-toggles-menus-false navigation-tablet-parent-toggles-menus-false navigation-mobile-parent-toggles-menus-false navigation-desktop-parent-active-false navigation-tablet-parent-active-false navigation-mobile-parent-active-false\"><div class=\"menu-container\"><ul class=\"kb-navigation menu collapse-sub-nav-desktop-true collapse-sub-nav-tablet-true collapse-sub-nav-mobile-true\">\n<style>.kb-nav-link-10961_00a9f7-6e > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_00a9f7-6e > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_00a9f7-6e menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#what-is-a-tsunami\">What is a Tsunami?<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_2d065b-7b > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_2d065b-7b > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_2d065b-7b menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#tsunamis-in-hawaii\">Tsunamis in Hawai\u02bbi<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_b98198-ff > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_b98198-ff > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_b98198-ff menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#prepare-for-tsunamis\">Prepare for Tsunamis<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_cae038-cd > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_cae038-cd > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_cae038-cd menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#responding-to-a-tsunami\">Responding to a Tsunami<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_d791d0-d4 > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_d791d0-d4 > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_d791d0-d4 menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#boating-safety-in-a-tsunami\">Boating Safety<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_8b1ef8-27 > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_8b1ef8-27 > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_8b1ef8-27 menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#after-a-tsunami\">After a Tsunami<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_6e13d9-01 > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_6e13d9-01 > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_6e13d9-01 menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#tsunami-maps-and-tools\">Tsunami Maps &amp; Tools<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_065223-1d > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_065223-1d > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_065223-1d menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#tsunami-resources\">Resources<\/a><\/div><\/li>\n\n<style>.kb-nav-link-10961_e6a737-9c > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-highlight-order:3;--kb-nav-link-highlight-icon-order:3;}.kb-nav-link-10961_e6a737-9c > .kb-link-wrap.kb-link-wrap.kb-link-wrap.kb-link-wrap{--kb-nav-link-media-max-width:px;}<\/style><li class=\"wp-block-kadence-navigation-link kb-nav-link-10961_e6a737-9c menu-item\"><div class=\"kb-link-wrap\"><a class=\"kb-nav-link-content\" href=\"#tools-and-resources-hurricane\"><\/a><\/div><\/li>\n<\/ul><\/div><\/nav><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:45%\">\n<h3 class=\"wp-block-heading\" id=\"what-is-a-tsunami\">What is a Tsunami?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A tsunami is a series of powerful waves usually caused by large earthquakes that displace the seafloor. These waves can travel thousands of miles across the ocean, at speeds over 500 miles per hour. Tsunamis are some of the most destructive and dangerous natural disasters. One of the deadliest natural disasters in recent history was the Indian Ocean tsunami of 2004, which killed 227,000 people in Southeast Asia and Africa, and was caused by a 9.2-magnitude earthquake in Indonesia. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When tsunami waves approach shores, where water is shallower than the open ocean, the traveling waves slow down and build in height. Most tsunami waves are less than 10 feet high, but extreme tsunamis have produced waves over 100 feet high.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:55%\"><style>.kb-image10961_ca955b-c9 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image10961_ca955b-c9\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"581\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/July-29-tsunami-wave-amplitude-visualization-NOAA-Dr.-Nathan-Becker-1024x581.png\" alt=\"\" class=\"kb-img wp-image-14189\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/July-29-tsunami-wave-amplitude-visualization-NOAA-Dr.-Nathan-Becker-1024x581.png 1024w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/July-29-tsunami-wave-amplitude-visualization-NOAA-Dr.-Nathan-Becker-300x170.png 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/July-29-tsunami-wave-amplitude-visualization-NOAA-Dr.-Nathan-Becker-768x436.png 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/July-29-tsunami-wave-amplitude-visualization-NOAA-Dr.-Nathan-Becker-500x284.png 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/July-29-tsunami-wave-amplitude-visualization-NOAA-Dr.-Nathan-Becker-800x454.png 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/July-29-tsunami-wave-amplitude-visualization-NOAA-Dr.-Nathan-Becker.png 1219w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><em>This visualization shows the paths of tsunami waves on July 29, 2025 as they make their way through the Pacific Ocean after being triggered by an 8.8-magnitude earthquake off the Kamchatka Peninsula in Russia. Credit: NOAA\/National Weather Service.<\/em> <\/figcaption><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><style>.kb-image10961_9093d5-72 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image10961_9093d5-72 size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"665\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169-1024x665.jpg\" alt=\"\" class=\"kb-img wp-image-14190\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169-1024x665.jpg 1024w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169-300x195.jpg 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169-768x499.jpg 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169-500x325.jpg 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169-800x520.jpg 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169-1280x832.jpg 1280w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Banda-Aceh-Sumatra-Indonesia-heavily-damaged-home-2004-tsunami-e1767999206169.jpg 1336w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><em>In 2004, Banda Aceh in Indonesia was battered by a powerful tsunami that spread throughout the Indian Ocean, taking the lives of over 200,000 people. Photo: Public domain.<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<p class=\"wp-block-paragraph\">Hazards of tsunamis that threaten life and property include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wave impacts along coastlines<\/li>\n\n\n\n<li>Flooding of low-lying coastal areas and inland waterways<\/li>\n\n\n\n<li>Strong currents that can last for days in some cases &#8211; Dangerous debris carried by floodwaters<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tsunamis cannot be predicted because they are caused by irregular geological events (usually earthquakes, but also landslides and volcanic activity). However, once a tsunami is generated, scientists have tools that can help forecast where and when the tsunami waves may impact land, how high the waves may be, and how long tsunami waves will last.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Sometimes, if a tsunami originates close to a coast \u2013 called a local tsunami &#8211; there is not enough time for officials to send detailed tsunami forecast information to people in the tsunami\u2019s path. Therefore, it is important that you be able to identify the natural warning signs of a tsunami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Feel a strong or long earthquake<\/li>\n\n\n\n<li>See a sudden or extreme rise or fall in sea level<\/li>\n\n\n\n<li>Hear a loud roar from the ocean, like a train or airplane<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These signs could mean that a tsunami is coming. Leave quickly and get to higher ground.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><style>.kb-image10961_bd12ea-d0 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image10961_bd12ea-d0 size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"622\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-1024x622.png\" alt=\"\" class=\"kb-img wp-image-14049\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-1024x622.png 1024w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-300x182.png 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-768x466.png 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-1536x933.png 1536w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-2048x1243.png 2048w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-500x304.png 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-800x486.png 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-1280x777.png 1280w, https:\/\/dod.hawaii.gov\/hiema\/files\/2025\/11\/Land-2-Natural-Tsunami-Warning-Signs2-1920x1166.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"tsunamis-in-hawaii\">Tsunamis in Hawai\u02bbi<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><style>.kb-image10961_04c3eb-c2 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image10961_04c3eb-c2 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Tsunami_large-Hilo-running-group-1946.jpg\" alt=\"\" class=\"kb-img wp-image-14179\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Tsunami_large-Hilo-running-group-1946.jpg 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Tsunami_large-Hilo-running-group-1946-300x188.jpg 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Tsunami_large-Hilo-running-group-1946-768x480.jpg 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Tsunami_large-Hilo-running-group-1946-500x313.jpg 500w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>In 1946, people in Hilo flee incoming tsunami waves. An 8.6-magnitude earthquake in Alaska triggered the tsunami, killing 159 people across Hawai\u02bbi. This tragedy is the deadliest natural disaster in state history. Photo: Pacific Tsunami Museum.<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Tsunamis have always been a part of life in Hawai\u02bbi. Ancient Hawaiian chants describe large, destructive waves that killed coastal dwellers. Modern observations of tsunamis in Hawai\u02bbi date as far back as 1813.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Since 1900, tsunamis have claimed the lives of 263 people in Hawaii, more deadly than any other kind of natural disaster. In that time, there have been nine large distant tsunamis with wave heights over ten feet. Six significant local tsunamis have been generated by earthquakes, landslides and volcanic activity within the Hawaiian Islands.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 1863, a local tsunami off the southeast coast of Hawai\u02bbi Island produced 17-foot waves that left 47 people dead in coastal villages.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 1946, an 8.6-magnitude earthquake in Alaska produced a tsunami that killed 159 people on Hawai\u02bbi Island, Maui, Kaua\u02bbi and O\u02bbahu &#8211; the deadliest tsunami in state history. Wave heights measured 54 feet in the Waikolu Valley on Moloka\u02bbi.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">In 1960, a 9.5-magnitude earthquake in Chile (the most powerful earthquake ever recorded) triggered a tsunami that killed 61 people in the Hilo area of Hawai\u02bbi Island. Wave heights in Hilo reached 35 feet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 1975, a local tsunami off the southeast coast of Hawai\u02bbi Island killed two people in Halape and produced waves 46 feet high. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the 21st century, massive earthquakes continue to produce threatening tsunamis in the Pacific region. In 2011, a 9.1-magnitude earthquake in Tohoku, Japan, killed 18,000 people there and produced damaging 12-foot waves in Hawai\u02bbi. In 2025, an 8.8-magnitude earthquake in Kamchatka, Russia, triggered tsunami evacuations in Hawai\u02bbi and produced wave heights of 5 feet in Hilo and Kahului.<\/p>\n\n\n<style>.kb-image10961_e98cea-32 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image10961_e98cea-32\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"680\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-1024x680.jpg\" alt=\"\" class=\"kb-img wp-image-14186\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-1024x680.jpg 1024w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-300x199.jpg 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-768x510.jpg 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-1536x1020.jpg 1536w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-2048x1360.jpg 2048w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-500x332.jpg 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-800x531.jpg 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-1280x850.jpg 1280w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Keauhou-Bay-Hawai\u02bbi-Island-2011-tohoku-tsunami-1920x1275.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><em>In 2011, residents in Keauhou Bay on Hawai\u02bbi Island assess damage after being hit by the tsunami that originated in Tohoku, Japan. <\/em><\/figcaption><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" id=\"prepare-for-tsunamis\">Prepare for Tsunamis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Because tsunamis can happen anytime \u2013 day or night, in any season \u2013 it is important to prepare for tsunamis right now. There are three main aspects to tsunami preparedness: Information, supplies and plans.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Information is essential for tsunami preparedness. Complete the following tasks to be informed:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">First, sign up for emergency alerts for the area you live in by going to <a href=\"https:\/\/dod.hawaii.gov\/hiema\/get-ready\/\">ready.hawaii.gov\/alerts<\/a>. Your county\u2019s emergency management agency will send immediate notifications to your cell phone when there is a tsunami or other threat. Second, find out if you live or work in a tsunami evacuation zone by using the <a href=\"https:\/\/dod.hawaii.gov\/hiema\/tsunami-evacuation-zones\/\">Tsunami Aware app<\/a>. Make sure you check the tsunami zones for your home, work and school.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hawai\u02bbi has two types of tsunami zones. The red zones are tsunami inundation zones that must be evacuated during any tsunami warning. The yellow zones are extreme tsunami inundation zones. These areas would be evacuated during an extreme tsunami that could result from a 9.0-magnitude earthquake in Alaska. An extreme tsunami is unlikely but plausible based on studies by tsunami scientists.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><style>.kb-image10961_0b325c-cf .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image10961_0b325c-cf\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"959\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Know-Your-Tsunami-Evacuation-Zones-1024x959.png\" alt=\"\" class=\"kb-img wp-image-14192\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Know-Your-Tsunami-Evacuation-Zones-1024x959.png 1024w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Know-Your-Tsunami-Evacuation-Zones-300x281.png 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Know-Your-Tsunami-Evacuation-Zones-768x720.png 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Know-Your-Tsunami-Evacuation-Zones-500x468.png 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Know-Your-Tsunami-Evacuation-Zones-800x749.png 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Know-Your-Tsunami-Evacuation-Zones.png 1077w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">It is important to note that schools have their own evacuation plans to get students to safety. If an evacuation is ordered when your child is at school, do not go to the school. Proceed with your own evacuation if you are in a tsunami evacuation zone. You can find out beforehand what your child\u2019s school evacuation plan is by going to the school\u2019s main office.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\"><style>.kb-image10961_f617b7-bb .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image10961_f617b7-bb size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"606\" height=\"1024\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Leaving-Tsunami-Hazard-Zone-credit-Dr-John-Cloud-Maui-NOAA-library-scaled-e1768002330789-606x1024.jpg\" alt=\"\" class=\"kb-img wp-image-14187\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"wp-block-paragraph\">In order to evacuate quickly, you should have a Go Bag ready with emergency supplies that can sustain you away from home, including water, food, medicine, power and a communication source. Useful things to include in a Go Bag include a radio, a local map, a cell phone battery, cell phone charger, multi-tool, first-aid kit, high-energy snacks like protein bars or nuts, a portable water filter, a flashlight and an extra layer of clothing. You also need to pack supplies for your pets, including water, food and medication. Find a full list of suggested Go Bag items at <a href=\"https:\/\/www.ready.gov\/kit\">FEMA&#8217;s Build a Kit page<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Finally, make sure your family knows your emergency plan. Know what roads lead from your home or work to high ground. Designate the home of a family member or friend that is away from the coast at a higher elevation. Also identify a safe place that you can reach on foot if vehicle traffic is too heavy. Have a hard copy of important phone numbers, including family members, work, school and doctor, in case your cell phone dies and you need to borrow a phone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During an emergency, local communication networks can sometimes become overloaded, blocking communications. In this case, it is helpful to have a long-distance contact on the mainland or on another island who is outside of clogged local networks. This person can be a central communication point for your family. You can relay information to this contact, and they can relay information back to other local people.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Make sure your family members know how to send a text message. In an emergency, text messages are more likely to get through a clogged network than voice calls, because text messages use less bandwith.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For more information on emergency communication, <a href=\"https:\/\/www.ready.gov\/sites\/default\/files\/2020-03\/family-emergency-communication-planning-document.pdf\">visit FEMA&#8217;s Make a Plan page<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:55%\">\n<h3 class=\"wp-block-heading\" id=\"responding-to-a-tsunami\">Responding to a Tsunami<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A network of tsunami warning systems operates 24\/7 across the United States and the Pacific region. In this system, when an earthquake occurs, scientists use seismological readings and deep-ocean data assessments to determine if a destructive tsunami could be generated. Scientists then use forecast modeling to predict when, where and how large tsunami waves may be. If it is forecast that there is a threat to people or property, warning messages are sent to the general population.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In Hawai\u02bbi, information warning systems that we can use include emergency alert systems on TV and radio, wireless emergency alerts for cell phones, and an outdoor siren system. If you hear an outdoor warning siren, it means an emergency is happening or may happen soon, and you need to check you cell phone, TV or radio for emergency instructions.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\"><style>.kb-image10961_1f09c7-c2.kb-image-is-ratio-size, .kb-image10961_1f09c7-c2 .kb-image-is-ratio-size{max-width:437px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image10961_1f09c7-c2.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image10961_1f09c7-c2 .kb-image-is-ratio-size{align-self:unset;}.kb-image10961_1f09c7-c2{max-width:437px;}.image-is-svg.kb-image10961_1f09c7-c2{-webkit-flex:0 1 100%;flex:0 1 100%;}.image-is-svg.kb-image10961_1f09c7-c2 img{width:100%;}.kb-image10961_1f09c7-c2 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image10961_1f09c7-c2 size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-1024x768.jpg\" alt=\"\" class=\"kb-img wp-image-14184\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-1024x768.jpg 1024w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-300x225.jpg 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-768x576.jpg 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-1536x1152.jpg 1536w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-2048x1536.jpg 2048w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-500x375.jpg 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-800x600.jpg 800w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-1280x960.jpg 1280w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/DART-II-tsunami-warning-buoy-credit-NOAA-Allen-Shimada-1920x1440.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><em>DART buoys (Deep-ocean Assessment and Reporting of Tsunamis) anchor to the seafloor and have instruments to help scientists forecast tsunami activity as tsunami waves pass. Photo: USGS.<\/em><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">If you receive a tsunami evacuation order, or notice the natural warning signs of a tsunami, get to high ground as quickly as possible. If the tsunami is still distant, you can take your Go Bag and evacuate in your vehicle. If the tsunami is local, you may need to evacuate on foot right away. Get away from the coast and get away from inland waterways. Find high ground or move past street signs that say \u201cLeaving Tsunami Zone.\u201d Always follow instructions from emergency personnel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can also vertically evacuate in urban areas. Go to a sturdy building made of reinforced concrete or structural steel that is ten stories or taller. Get to the fourth floor or above.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you are in a safe place and don\u2019t need to evacuate during a tsunami, stay in that safe place and do not travel. People who evacuate unnecessarily add to traffic on the roads, making it harder for people who do need to evacuate, and making it harder for emergency vehicles to operate and help people.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><style>.kb-image10961_902212-b1 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image10961_902212-b1 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"978\" height=\"653\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Crescent-City-Harbor-California-2011-Tohoku-tsunami-NOAA.jpg\" alt=\"\" class=\"kb-img wp-image-14183\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Crescent-City-Harbor-California-2011-Tohoku-tsunami-NOAA.jpg 978w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Crescent-City-Harbor-California-2011-Tohoku-tsunami-NOAA-300x200.jpg 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Crescent-City-Harbor-California-2011-Tohoku-tsunami-NOAA-768x513.jpg 768w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Crescent-City-Harbor-California-2011-Tohoku-tsunami-NOAA-500x334.jpg 500w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Crescent-City-Harbor-California-2011-Tohoku-tsunami-NOAA-800x534.jpg 800w\" sizes=\"auto, (max-width: 978px) 100vw, 978px\" \/><figcaption><em>Because tsunami waves build in shallow water, ports and harbors often sustain significant damage, as seen here at Crescent City Harbor in California after the 2011 Japan tsunami. If there is sufficient time and safe conditions, boats should seek deep water before tsunamis hit. Photo credit: USGS.<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" id=\"boating-safety-in-a-tsunami\">Boating Safety in a Tsunami<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Firstly, all boats should be equipped with emergency supplies on board, including water, food, first-aid, fuel, tools and communication devices. Make sure you have a VHF radio or a NOAA Weather Radio to receive tsunami alerts and official emergency instructions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Boats in harbor are more likely to suffer tsunami damage than boats in deep water. If you have time, move your boat to deep water of 100 meters or deeper. However, if you do not have time to move your boat before the forecasted wave impact, leave your boat in harbor and get yourself to high ground where you will be safe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you are out to sea during a tsunami, do not attempt to return to port until instructed to do so by marine authorities. Ports often suffer debris damage from tsunamis and become unnavigable. In addition, dangerous currents and unusual ocean movement can remain for hours or days after a tsunami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For more information on tsunami boating safety and recommended supplies, <a href=\"https:\/\/seagrant.soest.hawaii.edu\/hawaii-boaters-hurricane-and-tsunami-safety-manual\/\">consult the Hawai\u02bbi Boater&#8217;s Hurricane and Tsunami Manual<\/a>, published by the University of Hawai\u02bbi Sea Grant College.<\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" id=\"after-a-tsunami\">After a Tsunami<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It is important to wait for an official all-clear before returning to your home or traveling after a tsunami. Remember that tsunamis are series of waves that can continue for several hours. Do not enter the ocean until Ocean Safety has reopened beaches; dangerous currents can remain for days after a tsunami. Be extremely cautious around lingering floodwaters where dangerous debris may be hard to see. Infrastructure stabilization and official emergency operations may require hours or days before an evacuation is safe to return to.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"tsunami-maps-and-tools\">Tsunami Maps &amp; Tools<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-column.kb-section-dir-horizontal > .kt-inside-inner-col > .kt-info-box10961_75e3e0-c3 .kt-blocks-info-box-link-wrap{max-width:unset;}.kt-info-box10961_75e3e0-c3 .kt-blocks-info-box-link-wrap{padding-top:var(--global-kb-spacing-xs, 1rem);padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kt-info-box10961_75e3e0-c3.wp-block-kadence-infobox{max-width:100%;}.kt-info-box10961_75e3e0-c3 .kadence-info-box-image-inner-intrisic-container{max-width:800px;}.kt-info-box10961_75e3e0-c3 .kadence-info-box-image-inner-intrisic-container .kadence-info-box-image-intrisic{padding-bottom:78.739%;width:682px;height:0px;max-width:100%;}.kt-info-box10961_75e3e0-c3 .kadence-info-box-icon-container .kt-info-svg-icon, .kt-info-box10961_75e3e0-c3 .kt-info-svg-icon-flip, .kt-info-box10961_75e3e0-c3 .kt-blocks-info-box-number{font-size:50px;}.kt-info-box10961_75e3e0-c3 .kt-blocks-info-box-media{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;}.kt-info-box10961_75e3e0-c3 .kt-blocks-info-box-media-container{margin-top:0px;margin-right:15px;margin-bottom:0px;margin-left:15px;}.kt-info-box10961_75e3e0-c3 .kt-infobox-textcontent h3.kt-blocks-info-box-title{letter-spacing:-1.1px;}.kt-info-box10961_75e3e0-c3 .kt-blocks-info-box-learnmore{background:transparent;border-width:0px 0px 0px 0px;padding-top:4px;padding-right:8px;padding-bottom:4px;padding-left:8px;margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:0px;}<\/style>\n<div class=\"wp-block-kadence-infobox kt-info-box10961_75e3e0-c3\"><a class=\"kt-blocks-info-box-link-wrap info-box-link kt-blocks-info-box-media-align-top kt-info-halign-center\" href=\"https:\/\/dod.hawaii.gov\/hiema\/tsunami-evacuation-zones\/\"><div class=\"kt-blocks-info-box-media-container\"><div class=\"kt-blocks-info-box-media kt-info-media-animate-none\"><div class=\"kadence-info-box-image-inner-intrisic-container\"><div class=\"kadence-info-box-image-intrisic kt-info-animate-none\"><div class=\"kadence-info-box-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142049-e1768005173400.png\" alt=\"\" width=\"682\" height=\"537\" class=\"kt-info-box-image wp-image-14194\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142049-e1768005173400.png 682w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142049-e1768005173400-300x236.png 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142049-e1768005173400-500x394.png 500w\" sizes=\"auto, (max-width: 682px) 100vw, 682px\" \/><\/div><\/div><\/div><\/div><\/div><div class=\"kt-infobox-textcontent\"><h3 class=\"kt-blocks-info-box-title\">Tsunami Evacuation Zones Interactive Map<\/h3><\/div><\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-column.kb-section-dir-horizontal > .kt-inside-inner-col > .kt-info-box10961_1eba50-0d .kt-blocks-info-box-link-wrap{max-width:unset;}.kt-info-box10961_1eba50-0d .kt-blocks-info-box-link-wrap{padding-top:var(--global-kb-spacing-xs, 1rem);padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kt-info-box10961_1eba50-0d.wp-block-kadence-infobox{max-width:100%;}.kt-info-box10961_1eba50-0d .kadence-info-box-image-inner-intrisic-container{max-width:680px;}.kt-info-box10961_1eba50-0d .kadence-info-box-image-inner-intrisic-container .kadence-info-box-image-intrisic{padding-bottom:78.9706%;width:680px;height:0px;max-width:100%;}.kt-info-box10961_1eba50-0d .kadence-info-box-icon-container .kt-info-svg-icon, .kt-info-box10961_1eba50-0d .kt-info-svg-icon-flip, .kt-info-box10961_1eba50-0d .kt-blocks-info-box-number{font-size:50px;}.kt-info-box10961_1eba50-0d .kt-blocks-info-box-media{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;}.kt-info-box10961_1eba50-0d .kt-blocks-info-box-media-container{margin-top:0px;margin-right:15px;margin-bottom:0px;margin-left:15px;}.kt-info-box10961_1eba50-0d .kt-infobox-textcontent h3.kt-blocks-info-box-title{letter-spacing:-1.5px;}.kt-info-box10961_1eba50-0d .kt-blocks-info-box-learnmore{background:transparent;border-width:0px 0px 0px 0px;padding-top:4px;padding-right:8px;padding-bottom:4px;padding-left:8px;margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:0px;}<\/style>\n<div class=\"wp-block-kadence-infobox kt-info-box10961_1eba50-0d\"><a class=\"kt-blocks-info-box-link-wrap info-box-link kt-blocks-info-box-media-align-top kt-info-halign-center\" href=\"https:\/\/static.pdc.org\/tsunami\/index.html\"><div class=\"kt-blocks-info-box-media-container\"><div class=\"kt-blocks-info-box-media kt-info-media-animate-none\"><div class=\"kadence-info-box-image-inner-intrisic-container\"><div class=\"kadence-info-box-image-intrisic kt-info-animate-none\"><div class=\"kadence-info-box-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-151953-e1768008093792.png\" alt=\"\" width=\"680\" height=\"537\" class=\"kt-info-box-image wp-image-14195\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-151953-e1768008093792.png 680w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-151953-e1768008093792-300x237.png 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-151953-e1768008093792-500x395.png 500w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/div><\/div><\/div><\/div><\/div><div class=\"kt-infobox-textcontent\"><h3 class=\"kt-blocks-info-box-title\">Downloadable Evacuation Zone Maps<\/h3><\/div><\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><style>.wp-block-kadence-column.kb-section-dir-horizontal > .kt-inside-inner-col > .kt-info-box10961_4315ff-f5 .kt-blocks-info-box-link-wrap{max-width:unset;}.kt-info-box10961_4315ff-f5 .kt-blocks-info-box-link-wrap{padding-top:var(--global-kb-spacing-xs, 1rem);padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kt-info-box10961_4315ff-f5.wp-block-kadence-infobox{max-width:100%;}.kt-info-box10961_4315ff-f5 .kadence-info-box-image-inner-intrisic-container{max-width:682px;}.kt-info-box10961_4315ff-f5 .kadence-info-box-image-inner-intrisic-container .kadence-info-box-image-intrisic{padding-bottom:78.739%;width:682px;height:0px;max-width:100%;}.kt-info-box10961_4315ff-f5 .kadence-info-box-icon-container .kt-info-svg-icon, .kt-info-box10961_4315ff-f5 .kt-info-svg-icon-flip, .kt-info-box10961_4315ff-f5 .kt-blocks-info-box-number{font-size:50px;}.kt-info-box10961_4315ff-f5 .kt-blocks-info-box-media{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;}.kt-info-box10961_4315ff-f5 .kt-blocks-info-box-media-container{margin-top:0px;margin-right:15px;margin-bottom:0px;margin-left:15px;}.kt-info-box10961_4315ff-f5 .kt-blocks-info-box-learnmore{background:transparent;border-width:0px 0px 0px 0px;padding-top:4px;padding-right:8px;padding-bottom:4px;padding-left:8px;margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:0px;}<\/style>\n<div class=\"wp-block-kadence-infobox kt-info-box10961_4315ff-f5\"><a class=\"kt-blocks-info-box-link-wrap info-box-link kt-blocks-info-box-media-align-top kt-info-halign-center\" href=\"https:\/\/seagrant.soest.hawaii.edu\/wp-content\/uploads\/2025\/08\/2025-BoatersManual-FINAL.pdf\"><div class=\"kt-blocks-info-box-media-container\"><div class=\"kt-blocks-info-box-media kt-info-media-animate-none\"><div class=\"kadence-info-box-image-inner-intrisic-container\"><div class=\"kadence-info-box-image-intrisic kt-info-animate-none\"><div class=\"kadence-info-box-image-inner-intrisic\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142621.png\" alt=\"\" width=\"682\" height=\"537\" class=\"kt-info-box-image wp-image-14193\" srcset=\"https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142621.png 682w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142621-300x236.png 300w, https:\/\/dod.hawaii.gov\/hiema\/files\/2026\/01\/Screenshot-2026-01-09-142621-500x394.png 500w\" sizes=\"auto, (max-width: 682px) 100vw, 682px\" \/><\/div><\/div><\/div><\/div><\/div><div class=\"kt-infobox-textcontent\"><h3 class=\"kt-blocks-info-box-title\">Boater&#8217;s Hurricane &amp; Tsunami Manual<\/h3><\/div><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"tsunami-resources\">Resources<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.tsunami.gov\/\">Tsunami.gov (National Weather Service)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.tsunami.gov\/?page=itic\">International Tsunami Warning Center<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.usgs.gov\/special-topics\/subduction-zone-science\/science\/tsunamis\">U.S. Geological Survey: Tsunamis<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Note: To access Tsunami Evacuation Zone maps, click here. What is a Tsunami? A tsunami is a series of powerful waves usually caused by large earthquakes that displace the seafloor. [&hellip;]<\/p>\n","protected":false},"author":197,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"7407,3780,11270,4909,1406,1412","_relevanssi_noindex_reason":"","footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-10961","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/pages\/10961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/users\/197"}],"replies":[{"embeddable":true,"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/comments?post=10961"}],"version-history":[{"count":15,"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/pages\/10961\/revisions"}],"predecessor-version":[{"id":16046,"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/pages\/10961\/revisions\/16046"}],"wp:attachment":[{"href":"https:\/\/dod.hawaii.gov\/hiema\/wp-json\/wp\/v2\/media?parent=10961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}