Kamchatka quake near Petropavlovsk-Kamchatsky; magnitudes 7.0-7.5

A strong earthquake shook the east coast of Russia's Kamchatka region on Saturday, with seismological agencies reporting magnitudes ranging from about 7.0 to 7.5. The quake struck early in the day near the Sea of Okhotsk, roughly 110 to 120 kilometers east of the regional capital Petropavlovsk-Kamchatsky, and prompted short-lived tsunami alerts before officials said the threat had passed. There were no immediate reports of injuries or major damage.

Accounts of the quake's size and depth varied by agency. The U.S. Geological Survey initially measured the tremor at magnitude 7.5 before revising it to 7.4 and placed the epicenter about 111 kilometers east of Petropavlovsk-Kamchatsky at a depth of about 39 kilometers. Germany's GFZ research center logged a magnitude of 7.1 at a much shallower 10 kilometers. Russia's National Centre for Seismology posted on X that the event measured magnitude 7.0 at latitude 53.32 north, longitude 159.92 east and a depth of 60 kilometers.

The Pacific Tsunami Warning Center and the Pacific Tsunami Warning System briefly flagged a possible tsunami, with one advisory indicating hazardous waves up to one meter along nearby Russian coasts. Both centers...