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.

TSUNAMI alerts have been issued following three powerful earthquakes in the Pacific. The Pacific Tsunami Warning Center has placed Russia’s Kamchatka Peninsula under official tsunami threat