A tsunami alert issued after a 7.4-magnitude earthquake off Kamchatka was lifted when no hazardous waves arrived, though aftershocks remain possible.

Crete, Greece earthquake today: Tsunami warning after magnitude 6 earthquake hits coast

A landslide near the southern end of Portage Lake, Alaska, could pose a tsunami threat, with debris potentially creating waves 50 feet tall near the Begich, Boggs Visitors Center.

Heavy rains and melting glaciers are making landslides in the area more common, says a geologist.