News & activity updates
Mammoth Mountain volcano (California, USA (mainland exept Alaska)) activity update: weak seismic swarms
Wednesday Nov 07, 2012 07:54 AM | BY: T
Time and depth of quakes near Mammoth Mountain
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).
Location of quakes in the past days aat Mammoth Mountain
According to Earthquake-Report, the recently elevated seismicity in the area may be related to / have been energized by the large M7.7 Haida Gwaii earthquake west of British Colombia, Canada, on 28 Oct.
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]