Wednesday’s magnitude 7.3 earthquake off Alaska’s Aleutian Islands chain struck in a region that has experienced a handful of ...

A tsunami watch was issued for Hawaii about 15 mintues after the strongest quake. Warnings were issued for Russia's Kuril Islands. All were canceled.

The epicenter was near the intersection of Pacific and North American tectonic plates, a seismically active zone. No ...

A series of three earthquakes jolted the area near Petropavlovsk-Kamchatsky within a 32-minute window on Sunday. The most powerful of the tremors, originally measured at magnitude 7.4 and later ...