Tsunami warnings have been issued for parts of Russia and Japan after a massive 8.7 magnitude earthquake struck Wednesday off Russia’s remote and sparsely populated far eastern coast.

The earthquake hit about 85 miles (136 kilometers) from Petropavlovsk-Kamchatsky, Russia at a depth of 19 kilometers, according to the USGS, which upgraded the quake’s strength from an initial 8 magnitude estimate.

The quake is the strongest since 2011, since a 9.0-9.1 megaquake struck northeast Japan.

A tsunami threat was declared in Russia’s Kamchatka’s Peninsula, according to local governor Vladimir Solodov who urged residents to stay clear of coastlines. A tsunami wave 3-4 meters high has been recorded in the Yelizovo District of Kamchatka, according to authorities.

Minimal damage had been reported so far, Solodov said.

A tsunami warning has also been issued for the Pacific coast of Japan, with the country’s Meteorological Agency warning that waves up to 1 meter are expected to reach the country between 10 and 11 a.m. local time. The agency warned people to stay away from the coast.

“Based on the preliminary earthquake parameters, widespread hazardous tsunami waves are possible,” the Pacific Tsunami Warning Center said.

A tsunami watch is also in place for the Hawaiian Islands and a tsunami advisory for portions of Alaska’s Aleutian Islands.