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. (AP) PY PY