A brief tsunami watch for Hawaii was called off, but experts warn residents to remain prepared for future threats.

A powerful 7.4 magnitude earthquake hit Russia's Kamchatka Peninsula on Sunday, July 20, at a depth of 12 miles. Video footage shows the interior of a house shaking violently as the earthquake struck.

The Pacific Tsunami Warning Center has issued a warning for Russia’s Kamchatka Peninsula after two quakes struck in the sea nearby on Sunday. The larger quake with a magnitude of 7.4 was at a depth of 12 miles and was 89 miles east of the city of Petropavlovsk-Kamchatsky, which has a population of 180,000.