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Mammoth Mountain volcano
lava domes 3369 m / 11,053 ft
California, USA, 37.63°N / -119.03°W
Current status: normal or dormant (1 out of 5)
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Mammoth Mountain volcano eruptions:
1260 ± 40 years
Typical eruption style:
effusive
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News & activity updates

Mammoth Mountain (California, USA): another small seismic swarm

Tuesday Jan 29, 2013 08:08 AM | BY: T

Depth vs time of quakes under Mammoth Mountain
Depth vs time of quakes under Mammoth Mountain
Map of recent quakes near Mammoth Mountain
Map of recent quakes near Mammoth Mountain
Another small earthquake swarm occurred under the (dormant) volcano during 28-29 Jan. Numerous tiny quakes were registered at shallow depths (mostly 1-5 km).
Previous news
Seismic recording at Mammoth Mountain (MMS station, USGS)
Tuesday, Jan 22, 2013
Tiny earthquakes (less than mag 1) and some deep low-frequency events continue to occur at normal background levels under Mammoth Mountain. [more]
Time and depth of recent earthquakes under Mammoth Mountain
Monday, Jan 21, 2013
A small earthquake swarm occurred at Mammoth Mountain during 14-20 Jan and seems to have ended. [more]
Time and depth of quakes near Mammoth Mountain during the past days
Sunday, Jan 06, 2013
A small seismic swarm occurred between 4-5 January with quakes at depth of 12-15 km. [more]
Time and depth of quakes near Mammoth Mountain
Friday, Dec 28, 2012
Another (weak) earthquake swarm has started yesterday evening at Mammoth Mountain. Most quakes are at about 20 km depth in an area 5 km SW of the mountain. [more]
Time and depth of quakes near Mammoth Mountain during the past days
Friday, Nov 16, 2012
Another small earthquake swarm has occurred between 14-16 Nov. Such seismic activity falls into the normal behaviour of an active caldera system, and should not be seen as indicator of new eruptions to be expected in the near future. USGS who monitor their volcanoes very carefully maintain alert level green (normal) for Long Valley and Mammoth Mountain. [more]

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