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Latest news:
Long Valley volcano (California) activity update
Map of recent quakes at the Long Valley caldera (California)
Friday, Jul 19, 2013
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. [more]
Long Valley caldera (California): felt magnitude 3.8 earthquake
Location of yesterday's 3.8 earthquake
Sunday, Mar 31, 2013
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). [more]
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)
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)
 

Long Valley volcano

caldera 3390 m / 11,122 ft, California, 37.7°N / -118.87°W
Nearby recent earthquakes (within 30km radius):

Earthquake list: past 7 days (only M>=-0.8) (43 quakes)

Jump to quake statistics | Earthquake Glossary
 | archive: show
Earthquake depth plotUpdated: Sat, 4 Jul 16:07 UTC (GMT)
TimeMag. / DepthDistanceLocationMapSource
Sat, 4 Jul 2020
Sat, 4 Jul 04:56 UTCM 1.6 / 3.6 km - [info]Long Valley (6 km) - California 10km E of Mammoth Lakes, CA (USA)
[Map]		USGS
Thu, 2 Jul 2020 (7 earthquakes)
Thu, 2 Jul 20:46 UTCM 1.0 / 3.8 km - [info]Long Valley (29 km) - California 12km SSW of Toms Place, CA (USA)
[Map]		USGS
Thu, 2 Jul 19:12 UTCM 0.9 / 5 km - [info]Long Valley (22 km) - California 15km WSW of Toms Place, CA (USA)
[Map]		USGS
Thu, 2 Jul 18:49 UTCM 3.4 / 5.1 km - [info]Long Valley (29 km) - California 12km SSW of Toms Place, CA (USA)
I FELT IT - 1 report
[Map]		USGS
Thu, 2 Jul 18:09 UTCM 1.3 / 5.4 km - [info]Long Valley (29 km) - California 12km SSW of Toms Place, CA (USA)
[Map]		USGS
Thu, 2 Jul 17:50 UTCM 1.0 / 4.5 km - [info]Long Valley (29 km) - California 12km SSW of Toms Place, CA (USA)
[Map]		USGS
Thu, 2 Jul 16:12 UTCM 2.7 / 4.2 km - [info]Long Valley (29 km) - California 12km SSW of Toms Place, CA (USA)
I FELT IT
[Map]		USGS
Thu, 2 Jul 14:03 UTCM 0.5 / 5 km - [info]Long Valley (17 km) - California 14km W of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 2020 (9 earthquakes)
Wed, 1 Jul 15:48 UTCM 0.9 / 3.4 km - [info]Long Valley (19 km) - California 15km WSW of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 13:19 UTCM 0.5 / 4.8 km - [info]Long Valley (18 km) - California 14km W of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 12:15 UTCM 1.1 / 4.2 km - [info]Long Valley (19 km) - California 14km WSW of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 09:30 UTCM 0.9 / 1.3 km - [info]Long Valley (24 km) - California 14km SW of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 08:01 UTCM 0.6 / 2.9 km - [info]Long Valley (7 km) - California 6km E of Mammoth Lakes, CA (USA)
[Map]		USGS
Wed, 1 Jul 03:02 UTCM 0.9 / 5.8 km - [info]Long Valley (18 km) - California 14km W of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 02:56 UTCM 0.9 / 5.2 km - [info]Long Valley (18 km) - California 14km W of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 02:25 UTCM 0.9 / 5.4 km - [info]Long Valley (17 km) - California 14km W of Toms Place, CA (USA)
[Map]		USGS
Wed, 1 Jul 02:02 UTCM 0.6 / 3.3 km - [info]Long Valley (6 km) - California 6km NE of Mammoth Lakes, CA (USA)
[Map]		USGS
Tue, 30 Jun 2020
Tue, 30 Jun 22:58 UTCM 1.3 / 3.1 km - [info]Long Valley (26 km) - California 14km SW of Toms Place, CA (USA)
[Map]		USGS
Tue, 30 Jun 22:25 UTCM 0.9 / 0.7 km - [info]Long Valley (24 km) - California 14km SW of Toms Place, CA (USA)
[Map]		USGS
Tue, 30 Jun 14:33 UTCM 0.9 / 8.4 km - [info]Long Valley (14 km) - California 9km WNW of Toms Place, CA (USA)
[Map]		USGS
Mon, 29 Jun 2020 (6 earthquakes)
Mon, 29 Jun 17:26 UTCM 0.5 / 1.7 km - [info]Long Valley (4 km) - California 11km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Mon, 29 Jun 13:00 UTCM 1.8 / 3.7 km - [info]Long Valley (27 km) - California 16km SW of Toms Place, CA (USA)
[Map]		USGS
Mon, 29 Jun 12:23 UTCM 0.6 / 4.6 km - [info]Long Valley (6 km) - California 9km E of Mammoth Lakes, CA (USA)
[Map]		USGS
Mon, 29 Jun 06:20 UTCM 0.4 / 5.7 km - [info]Long Valley (8 km) - California 6km E of Mammoth Lakes, CA (USA)
[Map]		USGS
Mon, 29 Jun 05:07 UTCM 0.2 / 0.1 km - [info]Long Valley (4 km) - California 10km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Mon, 29 Jun 04:04 UTCM 0.6 / 2.8 km - [info]Long Valley (5 km) - California 11km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 2020 (15 earthquakes)
Sun, 28 Jun 19:43 UTCM 0.8 / 5.5 km - [info]Long Valley (8 km) - California 5km E of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 16:47 UTCM 0.6 / 3.9 km - [info]Long Valley (5 km) - California 9km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 10:58 UTCM 0.8 / 4.4 km - [info]Long Valley (26 km) - California 15km SW of Toms Place, CA (USA)
[Map]		USGS
Sun, 28 Jun 08:57 UTCM 0.2 / 3 km - [info]Long Valley (5 km) - California 9km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 06:06 UTCM 0.7 / 3 km - [info]Long Valley (4 km) - California 10km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 05:21 UTCM 0.1 / 2.7 km - [info]Long Valley (5 km) - California 8km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 04:31 UTCM 1.5 / 3 km - [info]Long Valley (7 km) - California 15km E of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 03:59 UTCM 0.3 / 3.1 km - [info]Long Valley (5 km) - California 8km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 03:27 UTCM 0.3 / 3.6 km - [info]Long Valley (4 km) - California 9km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 03:00 UTCM 0.3 / 2.6 km - [info]Long Valley (8 km) - California 15km NW of Toms Place, CA (USA)
[Map]		USGS
Sun, 28 Jun 02:57 UTCM 0.6 / 3.7 km - [info]Long Valley (5 km) - California 9km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 02:47 UTCM 0.6 / 3.9 km - [info]Long Valley (5 km) - California 9km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 02:40 UTCM 0.3 / 4 km - [info]Long Valley (5 km) - California 9km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 02:31 UTCM 0.6 / 3.4 km - [info]Long Valley (5 km) - California 9km ENE of Mammoth Lakes, CA (USA)
[Map]		USGS
Sun, 28 Jun 00:25 UTCM 0.7 / 3.4 km - [info]Long Valley (8 km) - California 15km NW of Toms Place, CA (USA)
[Map]		USGS
Sat, 27 Jun 2020
Sat, 27 Jun 21:17 UTCM 1.2 / 3.1 km - [info]Long Valley (8 km) - California 15km NW of Toms Place, CA (USA)
[Map]		USGS
Sat, 27 Jun 21:15 UTCM 1.2 / 2.9 km - [info]Long Valley (8 km) - California 15km NW of Toms Place, CA (USA)
[Map]		USGS
Estimated combined seismic energy released: 8.8*10^9 J (2.43 MWh / 2.09 tons of TNT) [learn more]

Earthquake statistics

Number of earthquakes vs time:

Past 24 hrs:
Number of quakes and energy past 24 hours
Past 30 days:
Number of quakes and energy past 30 days
Past 90 days:
Number of quakes vs time
Magnitude distribution and energy released:
Past 24 hrs:
Number of quakes and energy vs magnitude past 24 hrsMagnitudes of quakes and energy vs time past 24 hrs
Past 7 days:
Number of quakes and energy vs magnitude past 7 daysMagnitudes of quakes and energy vs time past 7 days
Past 30 days:
Number of quakes and energy vs magnitude past 30 daysMagnitudes of quakes and energy vs time past 30 days
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