A magnitude 7.4 earthquake struck near the coast of the Kamchatka region in the far east of Russia on Sunday, earthquake monitoring agencies said, with Russian emergency services watching for possible tsunami waves in the region.

The Pacific Tsunami Warning Centre has issued a warning for Russia's Kamchatka Peninsula after two quakes — the larger with a magnitude of 7.4 — struck in the sea nearby on Sunday. The larger quake was at a depth of 20 kilometers and was 144 kilometers east of the city of Petropavlovsk-Kamchatsky, which has a population of 180,000.