An image released by the Sakhalin Region Government on Wednesday, showing the tsunami-hit Severo-Kurilsk on Paramushir island of Russia’s northern Kuril islands.
An image released by the Sakhalin Region Government on Wednesday, showing the tsunami-hit Severo-Kurilsk on Paramushir island of Russia’s northern Kuril islands.
Parts of the North Pacific were rattled by powerful aftershocks on Thursday, a day after one of the strongest earthquakes ever recorded struck off the coast of Russia.

Dozens of aftershocks have been recorded since Wednesday's quake, which prompted tsunami warnings and evacuations on both sides of the Pacific Ocean. Five were notably strong, registering a magnitude above 6.

Most were recorded off Russia's Far East. The latest was a 6.2 shock that occurred just before 5:30 p.m. local time, about 124 miles southeast of Severo-Kurilsk on the island of Paramushir.

The strongest, a 6.9-magnitude temblor, struck 91 miles southeast of Petropavlovsk-Kamchatsky on the Kamchatka Peninsula just before 10 p.m. on Wednesday.

While most official warnings in the U.S. and other nations were lifted on Wednesday, a 40-mile stretch of Northern California's coastline remained under a tsunami advisory early Thursday. It ran from the boundary of Humboldt and Del Norte Counties to the Oregon border.