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Long Valley volcano (California) activity update

Sat, 26 Jan 2013, 12:12 | BY: TOMPFEIFFER
Map of recent quakes near Mammoth Mountain
Map of recent quakes near Mammoth Mountain
Seismic recording at Mammoth Mountain (MMS station, USGS)
Seismic recording at Mammoth Mountain (MMS station, USGS)
Tiny quakes continue to be recorded under and near the Long Valley caldera. A small swarm is visible today in an area 20 km to the SE of Mammoth Mountain, at the SW limit of the caldera.

Previous news

Fri, 24 Aug 2012, 12:05

Long Valley volcano (California) activity update: small earthquake swarms

Small earthquake swarm at Long Valley on 24 Aug 2012
A small earthquake swarm has developed at the southern margin of the caldera, just north of Convict Lakes. The largest was a 2.5 event at 10 km depth. ... Read all
Tue, 14 Aug 2012, 11:17

Long Valley volcano (California) activity update: occasional small earthquake swarms

Location of the recent quakes at Long Valley (red dots for 12-13 Aug)
A small swarm of earthquakes could be during 12-13 Aug. About 30 (very small mostly ... Read all
Long Valley volcano
caldera 3390 m / 11,122 ft
California, 37.7°N / -118.87°W
Current status: normal or dormant (1 out of 5) Long Valley volcano eruptions:
111,000-57,000 years ago (formation of Mammoth Mountain)
Typical eruption style
Explosive