Long Valley

Earthquakes Today: latest quakes near Long Valley volcano: past 14 days

Updated Dec 5, 2021 06:33 GMT - Refresh

During the past 14 days, Long Valley volcano was shaken by 1 quake of magnitude and 15 quakes between 2.0 and 3.0. There were also 226 quakes below magnitude 2.0 which people don't normally feel. ...Read More

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Depth and magnitude of quakes versus time plot

Showing quakes magnitude 0.5 or higher (1 earthquake):

Date and time	Mag Depth	Distance	Location	Details	Map
Sunday, November 21, 2021 22:09 GMT (1 earthquake)
Nov 21, 2021 2:09 pm (GMT -8) (Nov 21, 2021 22:09 GMT)	1.9 26 km	51 km (32 mi)	15km SE of Yosemite Valley, CA	More	Map

Estimated combined seismic energy released: 4.5 x 10⁷ joules (12.4 kilowatt hours) More info

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Latest news:

Fri, 19 Jul 2013, 02:12

Long Valley volcano (California) activity update

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. ... Read all

Sun, 31 Mar 2013, 10:53

Long Valley caldera (California): felt magnitude 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

Simplified geologic map for Long Valley Caldera and the Mono-Inyo Craters volcanic chain (based on Bailey, 1989) CD, Casa Diablo; HC Hot Cree; HCF Hiloton Creek Fault; HSF, Hartley Springs Fault; LCF, Laurel Creek Fault; MLF, Mono Lake Fault; SLF, Silver Lake Fault; WCF, Wheeler Crest Fault. (source: USGS)

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