Tsunami warning in effect after 8.2-magnitude earthquake off Alaska coast


Magnitudeuncertainty8.2 mww± 0.1
Locationuncertainty56.046°N 149.073°W± 5.9 km
Depthuncertainty25.0 km± 1.8
Origin Time
Number of Stations
Number of Phases322
Minimum Distance288.9 km (2.60°)
Travel Time Residual0.90 s
Azimuthal Gap28°
FE RegionGULF OF ALASKA (15)
Review StatusREVIEWED
CatalogUS (us2000cmy3)
Location SourceUS4
Magnitude SourceUS4
ContributorUS4



A red tsunami warning has been issued for the west coast of the US after a huge 7.9-magnitude earthquake struck at a shallow depth off the coast of Alaska.
The earthquake hit 256 km (157 miles) southeast of Chiniak, Alaska at a depth of 10km at 9.31am on Tuesday, the US Geological Survey said.
They initially said the earthquake was 8.2-magnitude, but this was later revised down to 7.9.
The Tsunami alert was in place for areas including California and the coasts of British Columbia and Alaska, the US National Weather Service said.




People in the effected areas are told to seek higher ground.
The National Weather Service Pacific Tsunami Warning Centre said "widespread hazardous tsunami waves were possible".
Alaska Governor Bill Walker said in a statement on Twitter that a blackout at the University of Alaska Fairbanks was making it more difficult to respond to the event.




People took to social media to say they had been told to evacuate.
"I just found out that I’m in the danger zone for a tsunami after an 8.2 earthquake and we got a warning call and have to evacuate with our horses and I’m so scared I can’t stop shaking," one west coast resident said.
An 8.2-magnitude earthquake detected in the Gulf of Alaska has triggered tsunami warnings in Alaska and tsunami watches across several Western states.
The earthquake struck about 175 miles southeast of Kodiak, Alaska, shortly after midnight in Alaska local time, according to preliminary figures from the United States Geological Survey. The quake had a depth of about 6 miles, according to USGS.
A tsunami warning is in effect for southeast and south Alaska, including the Alaska peninsula and Aleutian islands, as well as British Columbia in Canada. A tsunami watch is in effect for California, Oregon and Washington, according to the Tsunami Warning Center. A tsunami watch is also in effect for the Hawaiian Islands, according to the Honolulu Department of Emergency Management.

Nathaniel Moore who was on a boat in Kodiak said he felt it "shake really good for a minute." He and others on the commercial fishing vessel got off the boat after the earthquake to head for higher ground amid the tsunami warning.



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