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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 (mainland exept Alaska)) activity update

Friday Nov 16, 2012 08:45 AM | BY: T

Time and depth of quakes near Mammoth Mountain during the past days
Time and depth of quakes near Mammoth Mountain during the past days
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.
Previous news
Time and depth of quakes near Mammoth Mountain
Thursday, Nov 08, 2012
The shallow seismic swarm near Mammoth Mountain continues at reduced pace. [more]
Time and depth of quakes near Mammoth Mountain
Wednesday, Nov 07, 2012
Another small seismic swarm has occurred (or started) yesterday near Mammoth Mountain, with about 20 very small quakes located at about 6 km east of the volcano at depths mostly between 10 and 5 km. A larger magnitude 2.9 event at 13.5 km followed this morning (GMT time). ... [more]
Time and depth of quakes under Mammoth Mountain during the past week
Wednesday, Oct 31, 2012
A stronger than usual seismic swarm was recorded beneath Mammoth Mountain volcano in California during 29 October. The swarm, in such not uncommon, was accompanied by slight deformation ... [more]

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