Massive 8.7 Magnitude Quake Strikes Russia’s Far East; Tsunami Warnings Issued Across Pacific

A powerful 8.7-magnitude earthquake struck Russia’s Far East on Wednesday morning, triggering tsunami warnings across parts of Japan, Alaska, and Hawaii. The quake, centered off the coast of the Kamchatka Peninsula, occurred at 8:25 a.m. Japan time at a depth of 19.3 kilometers (12 miles), according to the U.S. Geological Survey.

The tremor caused immediate disruption in the Russian regions closest to the epicenter. In Petropavlovsk-Kamchatsky, the largest city nearby, residents fled into the streets — many barefoot and without coats — as buildings shook violently. Reports from Russia’s Tass news agency described toppled cabinets, broken mirrors, swaying cars, and damaged balconies. Power outages and mobile network disruptions were also reported. Evacuations were underway in Sakhalin Island as emergency services operated at full capacity.

Japan’s meteorological agency quickly issued a tsunami alert, warning that waves up to 3 meters could strike parts of Japan’s northern Pacific coast within 30 minutes. Though the quake’s epicenter lay about 250 kilometers from Hokkaido, the tremors were only mildly felt there, according to Japanese broadcaster NHK.

In the United States, the Pacific Tsunami Warning Center confirmed that a tsunami had been generated, warning that it could impact all Hawaiian islands. “Urgent action should be taken to protect lives and property,” the advisory stated. Initial waves were expected around 7 p.m. local time in Hawaii.

Tsunami alerts also extended to Alaska’s Aleutian Islands and much of the state’s coastline, including parts of the panhandle. A tsunami watch was issued for the U.S. West Coast, including California, Oregon, and Washington.

This quake follows a cluster of seismic activity earlier in July in the same region, where five strong tremors — the largest a 7.4 magnitude — struck offshore Kamchatka.

Historically, the Kamchatka Peninsula has been seismically active. On November 4, 1952, a 9.0 magnitude quake in the region caused major tsunamis, including 9.1-meter (30-foot) waves in Hawaii, though no deaths were reported at the time.