Articles tagged "usa volcanoes"

long_valley_caldera_eq_swarm_september_2014

Large earthquake swarm rattles Long Valley caldera, California U.S.

A large earthquake swarm is currently underway in Long Valley caldera, Mammoth Lake region of California U.S., east of the Sierra Nevada mountains. The swarm started on Thursday, September 25, 2014, and it is one of the largest earthquake swarms in this region in the pa

September 29, 2014