A 8.2 magnitude earthquake struck off the coast of Alaska late Wednesday night, national authorities said.
The earthquake occurred 75 miles southeast of the small town of Chignik, Alaska, at 10:15 p.m. with a depth of 20 feet, according to the U.S. National Tsunami Warning Center (NTWC).
Waves measured less than a foot above tidal level were seen in Sand Point, Old Harbor, King Cove, Kodiak, Unalaska and Alitak Bay, according to the NTWC. (RELATED: 17-Year-Old Lydia Jacoby Wins Gold In Tokyo, And Fans At Her Alaskan Watch Party Steal The Show)
The NTWC first issued a tsunami warning which was then lifted as authorities said there were no additional threats from the earthquake, the NTWC said.
We have reviewed a M8.2 EQ 65 miles S of Perryville at 10:15 pm AKST. This event was felt throughout the Alaska Peninsula and Kodiak. For more information and to submit DYFI reports, please go to https://t.co/eyDYAW4cKo
— Alaska Earthquake Center (@AKearthquake) July 29, 2021
“The tsunami threat from this earthquake has now passed. Readings from deep ocean gauges verify that a significant tsunami is not expected for the coastal areas covered by this message,” the NTWC said in a statement.
The tsunami delivered two strong aftershocks which had an initial magnitude of 6.2 and 5.6, the U.S. Geological Survey (USGS) said in a statement.
Tonight’s M8.2 event occurred close to the rupture area of the 2020 M7.8 earthquake and was the largest U.S. earthquake in 50 years. We’ll continue to update as this sequence unfolds, but here is a short piece on our website with what we know so far. https://t.co/PzHaaQ8Zbl pic.twitter.com/vcM8fq9IV7
— Alaska Earthquake Center (@AKearthquake) July 29, 2021
The Alaskan coast is prone to large earthquakes. A 6.1 magnitude earthquake occurred in May 2021 and the same region saw the second largest earthquake recorded in March 1964 with a magnitude of 9.2, according to the USGS.
There have been no injuries or damages reported and several towns on the Alaskan coast were ordered to evacuate, according to Reuters.
“There might be some minor damages in some places (in Alaska), but a significant tsunami and significant damage from something like that is not expected,” Dave Snider, tsunami warning coordinator with the NTWC, told Reuters.
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