Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Our New Book
Volcano Discoveries: "One of the most eye-catching guides to the world’s volcanoes ever published.
Volcano Travel
VolcanoAdventures: Our professional team of volcanologists and photographers offers unique travel opportunities: volcano expeditions, photo tours, and relaxed walking & study tours.
Volcano Adventure Guide
The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Guaranteed tours:
26 Sep - 1 Oct 2018: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
26 Sep - 10 Oct 2018: Volcanoes and Cultures - Adventures in the South Sea - Vanuatu (South Sea)
30 Sep - 7 Oct 2018: Fascination Volcano - Santorini Island (Greece)
30 Sep - 10 Oct 2018: The Volcanoes of Ambrym - the Grand Traverse - Vanuatu (South Sea)
6-13 Oct 2018: Pearl of the Aegean - Santorini - Santorini Island, Greece
12-17 Oct 2018: Krakatau Volcano Special - Krakatau volcano, Sunda Strait
13-20 Oct 2018: Almonds, olives and volcanoes - Nisyros Island, Greece
13-29 Nov 2018: Volcano Special: Ibu - Dukono - Lokon - Halmahera (Indonesia)
17-30 Nov 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
8-21 Dec 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
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) (56 quakes)

 | latest | archive: show
Earthquake depth plotUpdated: Fri, 21 Sep 14:30 UTC (GMT)
TimeMag. / DepthDistanceLocationMapSource
Fri, 21 Sep
Fri, 21 Sep 09:54 UTCM 0.9 / 2.4 km - [info]Mammoth Mountain (7 km) - California, USA- 3km ESE of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep (10 earthquakes)
Thu, 20 Sep 23:46 UTCM 0.2 / 4.4 km - [info]Mammoth Mountain (7 km) - California, USA- 3km ENE of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 23:36 UTCM 0.8 / 7.4 km - [info]Long Valley (17 km) - California- 10km W of Toms Place, CA
[Map]		USGS
Thu, 20 Sep 22:55 UTCM 0.3 / 1.9 km - [info]Mammoth Mountain (1 km) - California, USA- 4km WSW of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 21:30 UTCM 0.6 / 2.9 km - [info]Long Valley (2 km) - California- 12km ENE of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 20:54 UTCM 0.2 / 1.5 km - [info]Mammoth Mountain (10 km) - California, USA- 6km SE of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 20:24 UTCM 0.5 / 0.4 km - [info]Mammoth Mountain (9 km) - California, USA- 5km SE of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 12:04 UTCM 0.2 / 3.3 km - [info]Long Valley (9 km) - California- 12km E of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 11:22 UTCM 0.4 / 0.7 km - [info]Long Valley (9 km) - California- 12km E of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 01:38 UTCM 0.3 / 1.3 km - [info]Mammoth Mountain (2 km) - California, USA- 3km SW of Mammoth Lakes, CA
[Map]		USGS
Thu, 20 Sep 00:33 UTCM 1.6 / 2.9 km - [info]Mammoth Mountain (0 km) - California, USA- 5km W of Mammoth Lakes, CA
[Map]		USGS
Wed, 19 Sep
Wed, 19 Sep 19:42 UTCM 0.3 / 2.9 km - [info]Long Valley (5 km) - California- 8km ENE of Mammoth Lakes, CA
[Map]		USGS
Wed, 19 Sep 16:32 UTCM 0.2 / 1.5 km - [info]Inyo Craters (7 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Wed, 19 Sep 09:39 UTCM 0.2 / 5.4 km - [info]Long Valley (8 km) - California- 7km E of Mammoth Lakes, CA
[Map]		USGS
Wed, 19 Sep 08:06 UTCM 0.5 / 5.8 km - [info]Mammoth Mountain (14 km) - California, USA- 11km SE of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep (8 earthquakes)
Tue, 18 Sep 18:14 UTCM 0.4 / 0.8 km - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep 10:27 UTCM 0.2 / 0.7 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep 08:20 UTCM 0.3 / 3.8 km - [info]Long Valley (10 km) - California- 13km E of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep 08:04 UTCM 0.4 / 1.5 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep 07:51 UTCM 0.3 / 0.6 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep 00:38 UTCM 0.4 / 5 km - [info]Long Valley (6 km) - California- 8km ENE of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep 00:33 UTCM 0.6 - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
[Map]		USGS
Tue, 18 Sep 00:23 UTCM 0.6 / 6.3 km - [info]Long Valley (5 km) - California- 9km ENE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep (25 earthquakes)
Mon, 17 Sep 23:21 UTCM 0.4 / 0.9 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 21:59 UTCM 0.2 / 1.6 km - [info]Long Valley (7 km) - California- 5km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 19:59 UTCM 0.4 / 5.4 km - [info]Long Valley (6 km) - California- 9km E of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 19:39 UTCM 0.1 / 4.1 km - [info]Long Valley (6 km) - California- 9km E of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 19:38 UTCM 0.7 / 5.1 km - [info]Long Valley (2 km) - California- 9km E of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 19:32 UTCM 0.7 / 3.8 km - [info]Long Valley (6 km) - California- 9km E of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 19:30 UTCM 0.1 / 3.3 km - [info]Long Valley (5 km) - California- 9km E of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 19:21 UTCM 0.4 / 0.2 km - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 19:20 UTCM 0.2 / 0.5 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 18:32 UTCM 0.6 / 3.6 km - [info]Mammoth Mountain (22 km) - California, USA- 19km WSW of Toms Place, CA
[Map]		USGS
Mon, 17 Sep 18:08 UTCM 0.2 / 0.2 km - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 18:07 UTCM 0.6 / 1 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 16:21 UTCM 0.2 / 0.8 km - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 16:08 UTCM 0.5 / 0.5 km - [info]Mammoth Mountain (6 km) - California, USA- 1km E of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 15:53 UTCM 0.2 / 0.5 km - [info]Inyo Craters (8 km)- 3km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 15:22 UTCM 1.4 / 1.2 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 14:56 UTCM 0.1 / 0.1 km - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 14:42 UTCM 1.4 / 1.1 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 14:24 UTCM 0.2 / 0.5 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 14:10 UTCM 2.7 / 1.6 km - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
I FELT IT
[Map]		USGS
Mammoth Lakes / MMI IV (Light shaking): I was sleeping in bed with my girlfriend. We both woke up to the shaking. She suggested earthquake, I first thought it was a large truck until we looked up local earthquakes.
Mon, 17 Sep 13:59 UTCM 1.5 / 1.1 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 13:58 UTCM 0.1 / 0.3 km - [info]Inyo Craters (8 km)- 4km ENE of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 07:39 UTCM 0.5 / 5.2 km - [info]Long Valley (6 km) - California- 10km E of Mammoth Lakes, CA
[Map]		USGS
Mon, 17 Sep 02:07 UTCM 2.5 / 4.7 km - [info]Long Valley (14 km) - California- 14km W of Toms Place, CA
[Map]		USGS
Mon, 17 Sep 01:24 UTCM 0.7 / 5.3 km - [info]Long Valley (10 km) - California- 14km E of Mammoth Lakes, CA
[Map]		USGS
Sun, 16 Sep
Sun, 16 Sep 20:02 UTCM 0.4 / 4.5 km - [info]Long Valley (13 km) - California- 12km ESE of Mammoth Lakes, CA
[Map]		USGS
Sun, 16 Sep 12:31 UTCM 1.3 / 0.4 km - [info]Inyo Craters (7 km)- 3km NE of Mammoth Lakes, CA
[Map]		USGS
Sun, 16 Sep 07:04 UTCM 1.2 / 1.3 km - [info]Inyo Craters (8 km)- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Sat, 15 Sep
Sat, 15 Sep 08:34 UTCM 1.3 / 1.6 km - [info]Long Valley (7 km) - California- 4km NE of Mammoth Lakes, CA
[Map]		USGS
Sat, 15 Sep 05:22 UTCM 2.0 / 1 km - [info]Inyo Craters (8 km)LONG VALLEY AREA, CALIFORNIA
[Map]		EMSC
Sat, 15 Sep 03:49 UTCM 1.1 / 1.7 km - [info]Long Valley (7 km) - California- 5km NE of Mammoth Lakes, CA
[Map]		USGS
Fri, 14 Sep
Fri, 14 Sep 21:51 UTCM 0.6 / 4.6 km - [info]Mammoth Mountain (9 km) - California, USA- 4km ESE of Mammoth Lakes, CA
[Map]		USGS
Fri, 14 Sep 20:24 UTCM 0.4 / 4.7 km - [info]Mammoth Mountain (9 km) - California, USA- 4km E of Mammoth Lakes, CA
[Map]		USGS
to top
 

More on VolcanoDiscovery:

Mayon
Mayon volcano photos: Mayon on Luzon Island, towering above Legazpi city is famous for being one of the most perfectly symmetrical stratovolcanoes in the world. It is also one of the most active and most dangerous volcanoes (not only) in the Philippines.
Android App
Volcanoes & Earthquakes: Upgrade the Volcanoes & Earthquakes app!
Once installed for a tiny one-time cost, it unlocks additional features, removes ads in the free version of the app.
Ibu
Ibu volcano photos: Ibu in Halmahera is one of the most active, but rarely visited volcanoes in Indonesia. A spectacular lava dome is growing inside the volcano's breached crater, with frequent explosions.
VAAC
Volcanic Ash Advisory Centres: Much current eruption news is provided by the 9 Volcanic Ash Advisory Centres (VAAC) distributed around the globe. The VAACs provide a vital service for aviation safety.
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.