Tremors were felt in Panama City.
A massive magnitude 8.8 earthquake struck off Russia's Pacific coast on Tuesday, sparking tsunami warnings -- and evacuations of coastal areas -- in Hawaii and alerts for other areas of the U.S. West Coast.
The advisory includes the San Francisco Bay Area, including Sonoma, Napa, Larkspur, Vallejo, San Francisco, Berkeley, Oakland, Santa Cruz, Monterey and other ocean and bayside communities.
A 7.4 magnitude earthquake struck near Petropavlovsk-Kamchatsky, Russia, USGS said.
A tsunami warning has been issued for Papua New Guinea after a strong 6.9 magnitude earthquake struck the Pacific island nation.
Thursday's canceled tsunami warning left many in the Bay Area wondering: do you know what to do next time it happens? We rounded up experts for answers.