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

On Sunday, July 20, multiple earthquakes, including one that was 7.4 magnitude, struck the Russian coast. The U.S. National Tsunami Warning Center (USNTWC) initially issued a tsunami watch for Hawaii as a result at 9:03 p.m. local time on Saturday.

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