1st LD Writethru: 8.2-magnitude quake hits 104 km SE of Perryville, Alaska -- USGS

2021-07-29 17:06:10 GMT2021-07-30 01:06:10(Beijing Time) Xinhua English

SAN FRANCISCO, July 29 (Xinhua) -- An earthquake with a magnitude of 8.2 jolted 104 km SE of Perryville, Alaska at 0615 GMT on Thursday, the U.S. Geological Survey said.

The epicenter, with a depth of 32.2 km, was determined to be at 55.325 degrees north latitude and 157.841 degrees west longitude.

A tsunami advisory was issued and later canceled for the coastal areas of South Alaska and the Alaska Peninsula and the Aleutian Islands.

There is a low likelihood of casualties and damage, the U.S. Geological Survey said.

Large earthquakes are common in the Alaska-Aleutian subduction zone, it added.

Since 1900, eight other earthquakes M7 and larger have occurred within 250 km of the Thursday quake, including earthquakes of M7.8 on July 22, 2020 and M7.6 on Oct. 19, 2020.

The U.S. Geological Survey considered those previous events foreshocks of today's earthquake.

An earthquake of M8.2 also occurred on Nov. 10, 1938, within 40 km of the quake.

The Alaska-Aleutian Trench also hosted the second-largest earthquake recorded by modern seismic instrumentation, the M9.2 March 27 1964 earthquake, which hit an area within about 250 km of this event.

The earthquakes resulted in little impact on people and infrastructure thanks to the remote location. Enditem