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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 webcams / live data | Reports
Books
Long Valley volcano eruptions:
111,000-57,000 years ago (formation of Mammoth Mountain)
Typical eruption style:
Explosive
Last earthquakes nearby
Latest satellite images

Sentinel hub | Landsat 8
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Latest news & updates for Long Valley Caldera volcano

Long Valley volcano (California) activity update

Fri, 19 Jul 2013, 02:12
02:12 AM | BY: T
Map of recent quakes at the Long Valley caldera (California)
Map of recent quakes at the Long Valley caldera (California)
Normal seismic activity with numerous tiny earthquakes continues to occur at the southern and western parts of the caldera as well as under Mammoth mountain. There are no signs of a possible eruption in a near future.
Previous news
Sun, 31 Mar 2013, 10:53
Location of yesterday's 3.8 earthquake
Some felt earthquakes have occurred recently along the southern boundary of Long Valley Caldera, the latest a 3.8 magnitude quakes yesterday. This is not unusual for the volcanic system and does not mean any volcanic eruption should be expected in a near future. The alert status remains green (normal). ... read all
Wed, 20 Mar 2013, 17:32
Depth vs time of quakes at the Long Valley caldera (CA)
Small earthquakes continue to occur clustered near the SW margin of the caldera and Mammoth Mountain. The earthquake are tiny to small (less than magnitude 2) and show nothing usual going on. ... read all
Sat, 26 Jan 2013, 12:12
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. ... read all
Fri, 24 Aug 2012, 12:05
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
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
 

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