Earthquake swarm near Salton Buttes is not volcanic

Release Date:

An earthquake swarm started on 26 Sep 2016, 04:03AM PDT, and is ongoing in the Brawley Seismic Zone near the southern terminus of the San Andreas Fault and about 12 km (7.5 mi) north of Salton Buttes.

The swarm does not appear to be related to volcanic activity. The USGS/Caltech Southern California Seismic Network has identified 37 events as of 9:10 AM PDT today with magnitudes ranging between M1.4 to M4.3 at 4 to 9 km depth. Two two previous swarms occurred in the area in 2009 and 2001. See the full report and updates.

September 26, 2016 earthquake locations (circles) of ongoing swarm north of Salton Buttes, California. SCSN seismometers located

September 26, 2016 earthquake locations (circles) of ongoing swarm north of Salton Buttes, California. SCSN seismometers located by triangles.

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