Earthquake swarm in northwest Nevada intensifies, USA [1]

An intense swarm of earthquakes is shaking sparsely populated region of northwest Nevada, USA since July 12, 2014. Authorities report the swarm has become much more active in the past few days.

During the past three months the Nevada Seismological Laboratory (NSL), in collaboration with the USGS and seismic networks in Washington and Oregon, has recorded 42 earthquakes larger than Magnitude 3, and about 550 earthquakes larger than Magnitude 2...