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

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.

A powerful magnitude 7.4 earthquake has struck off the coast of Russia, the US Geographical Survey has reported, and has been followed by a tsunami warning