Tsunami threat over after several large quakes off Russia's Pacific coast

The Pacific Tsunami Warning Centre says there is no longer a danger of tsunami waves on Russia's Kamchatka Peninsula after five powerful quakes — the largest with a magnitude of 7.4 — struck in the sea nearby on Sunday.

The largest quake was at a depth of 20 kilometres and was 144 kilometres east of the city of Petropavlovsk-Kamchatsky, which has a population of 180,000, according to the US Geological Survey.

Smaller — but still substantial — quakes were recorded before and after.

The PTWC initially said there was a danger of major tsunami waves but later downgraded its warning before finally saying the danger had passed.

Russia's Emergencies Ministry also issued a tsunami warning following the largest quake, urging residents of coastal settlements to stay away from the shore.

There were no immediate reports of casualties or damage, and the ministry said it had no immediate plans to evacuate residents.

On November 4, 1952, a magnitude 9.0 quake in Kamchatka caused damage but no reported deaths despite setting off 9.1-metre waves in Hawaii.