Five powerful quakes, including one with a magnitude of 7.4, struck in the sea off Russia's Kamchatka Peninsula.

Residents of Russia's Kamchatka Peninsula were warned of potential tsunami waves as a series of earthquakes, including a 7.4 magnitude one, struck off the Russian coast, according to the U.S. Geological Survey. A Tsunami threat was issued off the Kamchatka coast, according to the U.S. Tsunami Warning System.

S everal earthquakes, including a 7.4 magnitude one, struck off the Russian coast on Sunday, according to the U.S. Geological Survey, prompting brief warnings of potential tsunami waves on the nearby peninsula and farther across the Pacific in Hawaii.