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Tsunami alerts were issued for Alaska, Hawaii, and other areas along the Pacific coast after a magnitude 8.8 earthquake struck off Russia’s Kamchatka Peninsula.
The U.S. Geological Survey (USGS) said the earthquake was recorded at 7:24 p.m. ET, approximately 78 miles east-southeast of Petropavlovsk-Kamchatsky, Russia.
Initial reports said the magnitude was 8.0 and 8.7.
CBS News provided coverage:
Hawaii is under a tsunami warning and the West Coast is under a tsunami watch after an 8.7 earthquake near Russia.
“Take action!” Oahu emergency officials posted on social media. “Destructive tsunami waves expected.” https://t.co/zgjMLDErKR pic.twitter.com/Hv05M1e9G8
— CBS News (@CBSNews) July 30, 2025
ABC News has more:
A tsunami warning was announced for Alaska’s Aleutian Islands and Hawaii. California, Oregon and Washington are under a tsunami advisory, while the threat is being evaluated.
The U.S. territories of Guam and American Samoa are also under a tsunami advisory, according to USGS.
The first tsunami wave is forecast to reach Hawaii just after 7:15 p.m. local time. Destructive tsunami waves are expected, according to Oahu Emergency Management.
Sources told ABC News the Hawaii Emergency Management Agency has activated its Emergency Operations Center. Officials have also proactively activated their Joint Information Center and are meeting with Hawaii Gov. Josh Green’s team.
Sirens are currently going off on all Hawaii islands as a part of their statewide warning system, ten minutes after the hour for the next three hours to warn people.
People are urged to evacuate coastal areas, according to officials. Residents in Honolulu were urged to evacuate the primary evacuation zone or go to at least the fourth floor of a building.
All shores of the island are at risk because tsunami waves wrap around islands, according to the National Weather Service.
Tsunami waves are reportedly already crashing into parts of Russia after the earthquake.
Journalist Nick Sortor shared footage:
🚨 BREAKING: Tsunami waves from the 8.7 magnitude earthquake have begun slamming Russia
Buildings are already being swept away
Tsunami waves are also heading to Hawaii, expected to arrives within hours pic.twitter.com/dPg72zln9N
— Nick Sortor (@nicksortor) July 30, 2025
“A tsunami warning is now in effect for the state of Hawaii. A tsunami has been generated. Action should be taken to protect lives and property,” U.S. Emergency Alert wrote.
HAWAII: A tsunami warning is now in effect for the state of Hawaii. A tsunami has been generated. Action should be taken to protect lives and property. (Source: PTWC)
— U.S. Emergency Alert (@ENSAlerts) July 30, 2025
“This is the largest earthquake on the planet since the 2011 Japanese Tōhoku earthquake,” Colin McCarthy, a weather analyst covering extreme global weather, commented.
BREAKING 🚨: The earthquake of the Russian Coast has been upgraded to a MAGNITUDE 8.7.
This is the largest earthquake on the planet since the 2011 Japanese Tōhoku earthquake.
TSUNAMI WARNINGS have been issued for the Aleutian Islands in Alaska.
The entire West Coast of the… pic.twitter.com/5fV7mVccTK
— Colin McCarthy (@US_Stormwatch) July 30, 2025
“A tsunami watch has been issued for the ENTIRE west coast of the U.S. and Hawaii after an 8.7 magnitude earthquake strikes the western Pacific Ocean This is currently listed as the STRONGEST earthquake in the world since 2011,” Sortor added.
🚨 BREAKING: A tsunami watch has been issued for the ENTIRE west coast of the U.S. and Hawaii after an 8.7 magnitude earthquake strikes the western Pacific Ocean
This is currently listed as the STRONGEST earthquake in the world since 2011
HEED WARNINGS! Tsunamis are NO JOKE! pic.twitter.com/nviGm74lyh
— Nick Sortor (@nicksortor) July 30, 2025
Fox News shared additional coverage:
BREAKING: Tsunami warning sirens sound in Hawaii after massive 8.8 magnitude earthquake off coast of Russia pic.twitter.com/y4IYZePDt8
— Fox News (@FoxNews) July 30, 2025
USA TODAY provided further details:
The tsunami warning for Alaska includes coastal areas from Attu to Samalga Pass. The tsunami advisory has been expanded to areas from Samalga Pass to Chignik Bay. Expected tsunami start times in Alaska include the following: 6:45 p.m., Unalaska; 7:25 p.m., Sand Point and 8:00 p.m. Cold Bay.
The National Tsunami Warning Center advises that tsunami activity is possible at Shemya, Alaska beginning at 4:46 p.m., Alaskan Daylight Time, then at 5:46 p.m. at Adak and 7:06 p.m. at Saint Paul, about 760 miles west of Anchorage.
Possible tsunami start times stretch from 8:20 p.m. local time in Kodiak, Alaska, southward along the coast to La Jolla, California, where tsunami activity would be expected to begin by 1:15 a.m. local time.
Estimated tsunami start times, in local times, for selected sites are:
- Alaska: Kodiak – 8:20 p.m., Seward – 8:45 p.m., Sitka – 8:55 p.m., Homer – 9:40 p.m., and Craig – 9:55 p.m.
- British Columbia: Langara – 10:05 p.m. and Tofino – 11:30 p.m.
- Washington state: La Push – 11:35 p.m., Port Angeles – 12:20 a.m. on July 30, Port Townsend – 12:45 a.m. on July 30, and Bellingham – 1:10 a.m. on July 30
- Oregon: Port Oxford – 11:40 p.m., Charleston – 11:45 p.m., Brookings – 11:50 p.m., Seaside – 11:55 p.m., and Newport – 11:55 p.m.
- California: Fort Bragg – 11:50 p.m., Monterey – 12:15 a.m. on July 30, San Francisco – 12:40 a.m. on July 30, Los Angeles Harbor – 1:05 a.m. on July 30, and La Jolla – 1:15 a.m. on July 30
The Japan Weather Agency upgraded its warning, saying it expected tsunami waves of up to 10 feet to reach large coastal areas starting around 10:00 a.m. local time. Broadcast NHK said evacuation orders had been issued by the government for some areas.
The U.S. Tsunami Warning System also issued a warning of “hazardous tsunami waves” within the next three hours along some coasts of Russia, Japan and Hawaii. A tsunami watch was also in effect for the U.S. island territory of Guam and other islands of Micronesia.
In Guam, the weather service is warning of sea level fluctuations and strong ocean currents that could be a hazard along beaches and in harbors. The weather service has advised people to get out of the ocean and move away from beaches and harbors, following the instructions of local government officials. The estimated time of the activity in Guam, Rota , Tinian and Saipan is 2:37 p.m. local time.