A powerful series of undersea quakes, including a 7.4 magnitude tremor, struck off Russia’s Kamchatka Peninsula on Sunday, triggering tsunami warnings.

The National Tsunami Warning Center issued a tsunami warning for parts of Alaska’s Aleutian Islands, and a watch for portions of the West Coast, including California, Oregon, Washington and

After an 8.8-magnitude earthquake off the coast of Russia’s Kamchatka peninsula, early tsunami warning systems kicked in and helped millions of people safely evacuate