An increase in the number of earthquakes under a volcano near Alaska's largest city this year has geologists paying attention.Mount Spurr, about 80 miles northwest of Anchorage, last erupted in ...

According to the University of Alaska Fairbanks Alaska Earthquake Center, this is not a typical aftershock sequence following a main earthquake but a swarm, or a cluster of earthquakes near the same ...

Nine quakes measuring at least magnitude 5.0 struck on or near the islands and in a cluster offshore to the south Sunday morning and afternoon, according to the Alaska Earthquake Center.

Seismologists are monitoring an earthquake swarm that is continuing to develop off Alaska's Aleutian Island chain and includes several stronger quakes. Then, a few hours later, two more ...

A swarm of earthquakes, including three exceeding magnitude 6.0, rattled Alaska's western Aleutian Islands on Sunday. Centered near Adak, the tremors, though unusual in their clustered occurrence ...

Nine quakes measuring at least magnitude 5.0 struck on or near the islands and in a cluster offshore to the south Sunday morning and afternoon, according to the Alaska Earthquake Center.

The quakes come a week after a magnitude 7.0 earthquake hit off the coast of California with shaking felt for miles.

Scientists at the Alaska Earthquake Center are monitoring an unusually high number of moderate earthquakes near Adak Island. About a dozen tremors between magnitude 6.3 and 5 struck within hours ...