A magnitude 8.7 earthquake struck off Russia's Kamchatka Peninsula on July 29, triggering tsunami alerts for the entire U.S. West Coast and portions of the Alaska Aleutian Islands, the U.S. Geological Survey said.

The earthquake was recorded at 7:24 p.m. ET, about 78 miles east-southeast of of Petropavlovsk-Kamchatsky, Russia, the U.S. Geological Survey (USGS) said in its updated assessment. The agency said the quake was shallow, at a depth of about 11 miles.

A tsunami warning was in place along Alaska’s remote Aleutian Islands. Residents in the islands were advised