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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)
Mammoth Mountain webcams / live data | Reports
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Mammoth Mountain volcano eruptions:
1260 ± 40 years
Typical eruption style:
effusive
Last earthquakes nearby
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News & activity updates

Mammoth Mountain volcano (California, USA) activity update

Tuesday Jan 22, 2013 08:37 AM | BY: T

Seismic recording at Mammoth Mountain (MMS station, USGS)
Seismic recording at Mammoth Mountain (MMS station, USGS)
Tiny earthquakes (less than mag 1) and some deep low-frequency events continue to occur at normal background levels under Mammoth Mountain.
Previous news
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]
Time and depth of quakes near Mammoth Mountain
Thursday, Nov 08, 2012
The shallow seismic swarm near Mammoth Mountain continues at reduced pace. [more]

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