Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
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:
16-23 Sep 2017: Pearl of the Aegean - Santorini - Santorini Island, Greece
20-24 Sep 2017: Sinabung Volcano Special - Sumatra (Indonesia)
20-25 Sep 2017: Sinabung Volcano Special - Sumatra (Indonesia)
23-28 Sep 2017: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
1-16 Oct 2017: From Krakatau to Bali - Java (Indonesia)
7-14 Oct 2017: Pearl of the Aegean - Santorini - Santorini Island, Greece
13-27 Oct 2017: Volcanoes of Italy - the Grand Tour - Southern Italy
16-19 Oct 2017: Indonesia Specials - Java-Komodo-Bali (Indonesia)
14-27 Nov 2017: Expedition Papua - Papua New Guinea
18 Nov - 1 Dec 2017: 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) (84 quakes)

 | latest | archive: show
Earthquake depth plot Updated: Wed, 23 Aug 11:53 UTC (GMT)
TimeMag. / DepthDistanceLocationMapSource
Wed, 23 Aug
Wed, 23 Aug 10:53 UTCM 1.4 / 1.5 km - [info]Long Valley (18 km) - California- 15km SE of Mammoth Lakes, California
[Map]		USGS
Wed, 23 Aug 07:26 UTCM 1.9 / 5.1 km - [info]Mammoth Mountain (6 km) - California, USA- 1km SSE of Mammoth Lakes, California
[Map]		USGS
Wed, 23 Aug 06:43 UTCM 1.1 / 0.1 km - [info]Long Valley (26 km) - California- 23km SE of Mammoth Lakes, California
[Map]		USGS
Wed, 23 Aug 04:45 UTCM 0.9 / 0.6 km - [info]Mammoth Mountain (6 km) - California, USA- 5km S of Mammoth Lakes, California
[Map]		USGS
Wed, 23 Aug 03:32 UTCM 1.4 / 10.9 km - [info] (35 km)- 18km NW of West Bishop, California
[Map]		USGS
Tue, 22 Aug (11 earthquakes)
Tue, 22 Aug 22:43 UTCM 0.7 / 11.8 km - [info]Mammoth Mountain (4 km) - California, USA- 1km WSW of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 19:39 UTCM 0.7 / 0.8 km - [info]Mammoth Mountain (7 km) - California, USA- 9km SSW of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 09:52 UTCM 1.6 / 2.3 km - [info]Long Valley (25 km) - California- 23km SSE of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 09:45 UTCM 1.3 / 0.8 km - [info]Mammoth Mountain (19 km) - California, USA- 17km SSE of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 06:48 UTCM 1.3 / 0.3 km - [info]Mammoth Mountain (6 km) - California, USA- 4km S of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 04:58 UTCM 1.0 / 4.8 km - [info]Long Valley (14 km) - California- 13km SE of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 04:15 UTCM 1.0 / 2.6 km - [info]Mammoth Mountain (10 km) - California, USA- 11km SSW of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 02:09 UTCM 1.8 / 0.8 km - [info]Mammoth Mountain (9 km) - California, USA- 6km SSE of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 01:59 UTCM 1.3 / 140 km - [info]Long Valley (25 km) - California- 23km SE of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 01:41 UTCM 1.2 / 2.1 km - [info]Long Valley (25 km) - California- 23km SE of Mammoth Lakes, California
[Map]		USGS
Tue, 22 Aug 01:37 UTCM 1.2 / 0.3 km - [info]Mammoth Mountain (25 km) - California, USA- 23km SE of Mammoth Lakes, California
[Map]		USGS
Mon, 21 Aug
Mon, 21 Aug 23:48 UTCM 1.6 / 1.7 km - [info]Long Valley (19 km) - California- 17km SE of Mammoth Lakes, California
[Map]		USGS
Mon, 21 Aug 20:27 UTCM 1.2 / 1.6 km - [info]Mammoth Mountain (13 km) - California, USA- 13km S of Mammoth Lakes, California
[Map]		USGS
Mon, 21 Aug 19:28 UTCM 1.3 / 0.3 km - [info]Mammoth Mountain (14 km) - California, USA- 12km SSE of Mammoth Lakes, California
[Map]		USGS
Mon, 21 Aug 03:50 UTCM 1.6 / 0.2 km - [info]Long Valley (24 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Mon, 21 Aug 01:32 UTCM 1.0 / 3.4 km - [info]Mammoth Mountain (17 km) - California, USA- 14km SE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug (15 earthquakes)
Sun, 20 Aug 22:46 UTCM 2.6 / 1.2 km - [info]Long Valley (24 km) - California- 22km SE of Mammoth Lakes, California
I FELT IT
[Map]		USGS
Sun, 20 Aug 21:12 UTCM 2.5 / 2.4 km - [info]Mono Craters (7 km)- 19km NNW of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 19:25 UTCM 1.5 / 0.4 km - [info]Long Valley (20 km) - California- 19km SE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 19:04 UTCM 1.8 / 0.2 km - [info]Mammoth Mountain (23 km) - California, USA- 21km SSE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 18:52 UTCM 1.2 / 1.4 km - [info]Long Valley (24 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 18:31 UTCM 1.9 / 0.3 km - [info]Long Valley (24 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 18:23 UTCM 1.2 / 0.4 km - [info]Long Valley (25 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 17:21 UTCM 1.0 / 0.9 km - [info]Mammoth Mountain (7 km) - California, USA- 6km S of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 17:14 UTCM 1.8 / 0.4 km - [info]Long Valley (24 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 06:38 UTCM 1.3 / 0.2 km - [info]Mammoth Mountain (10 km) - California, USA- 7km SSE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 05:23 UTCM 0.9 / 0.6 km - [info]Mammoth Mountain (9 km) - California, USA- 5km SSE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 02:58 UTCM 2.0 / 2 km - [info]Long Valley (19 km) - CaliforniaCENTRAL CALIFORNIA
[Map]		EMSC
Sun, 20 Aug 01:38 UTCM 1.0 / 0.2 km - [info]Mammoth Mountain (6 km) - California, USA- 4km S of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 00:27 UTCM 2.1 / 1.8 km - [info]Long Valley (19 km) - California- 17km SE of Mammoth Lakes, California
[Map]		USGS
Sun, 20 Aug 00:26 UTCM 2.9 / 0.7 km - [info]Long Valley (19 km) - California- 17km SE of Mammoth Lakes, California
I FELT IT
[Map]		USGS
Sat, 19 Aug (18 earthquakes)
Sat, 19 Aug 22:12 UTCM 1.1 / 6.6 km - [info]Long Valley (7 km) - California- 8km E of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 21:58 UTCM 1.3 / 6.5 km - [info]Long Valley (8 km) - California- 8km ESE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 17:13 UTCM 1.3 / 2.8 km - [info]Long Valley (15 km) - California- 15km SE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 16:51 UTCM 1.4 / 0.9 km - [info]Long Valley (25 km) - California- 23km SE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 15:13 UTCM 1.2 / 0.9 km - [info]Mammoth Mountain (9 km) - California, USA- 6km SSE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 13:00 UTCM 1.5 / 6.1 km - [info]Long Valley (8 km) - California- 6km ESE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 11:51 UTCM 1.3 / 0.1 km - [info]Mammoth Mountain (18 km) - California, USA- 15km SSE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 10:20 UTCM 1.0 / 0.8 km - [info]Mammoth Mountain (9 km) - California, USA- Long Valley area, California
[Map]		USGS
Sat, 19 Aug 09:55 UTCM 0.9 / 0.8 km - [info]Mammoth Mountain (17 km) - California, USA- 14km SSE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 09:49 UTCM 1.1 / 0.3 km - [info]Long Valley (23 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 09:45 UTCM 1.6 / 0.7 km - [info]Long Valley (25 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 09:39 UTCM 1.5 / 2 km - [info]Mammoth Mountain (23 km) - California, USA- Central California
[Map]		USGS
Sat, 19 Aug 09:35 UTCM 1.4 / 1.5 km - [info]Mammoth Mountain (20 km) - California, USA- 17km SSE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 09:30 UTCM 2.1 / 2 km - [info]Mammoth Mountain (19 km) - California, USACENTRAL CALIFORNIA
[Map]		EMSC
Sat, 19 Aug 08:04 UTCM 1.5 / 2.3 km - [info]Long Valley (19 km) - California- 18km SE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 06:50 UTCM 2.1 - [info]Mammoth Mountain (23 km) - California, USACENTRAL CALIFORNIA
[Map]		EMSC
Sat, 19 Aug 04:40 UTCM 1.3 / 1 km - [info]Mammoth Mountain (17 km) - California, USA- 15km SSE of Mammoth Lakes, California
[Map]		USGS
Sat, 19 Aug 01:55 UTCM 1.8 / 0.3 km - [info]Long Valley (24 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug (10 earthquakes)
Fri, 18 Aug 23:02 UTCM 1.1 / 1.1 km - [info]Long Valley (21 km) - California- Central California
[Map]		USGS
Fri, 18 Aug 21:18 UTCM 1.3 / 0.5 km - [info]Mammoth Mountain (16 km) - California, USA- 14km SSE of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug 20:25 UTCM 1.3 / 5.9 km - [info]Long Valley (8 km) - California- 6km ESE of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug 17:23 UTCM 1.0 / 2.2 km - [info]Mammoth Mountain (7 km) - California, USA- 9km SSW of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug 16:20 UTCM 1.6 / 2.4 km - [info]Mammoth Mountain (16 km) - California, USA- 14km SSE of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug 15:54 UTCM 1.1 / 1.1 km - [info]Mammoth Mountain (10 km) - California, USA- 7km SSE of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug 15:44 UTCM 2.6 / 3 km - [info]Mammoth Mountain (15 km) - California, USACENTRAL CALIFORNIA
I FELT IT
[Map]		EMSC
Fri, 18 Aug 12:52 UTCM 0.7 / 0.8 km - [info]Mammoth Mountain (1 km) - California, USA- 5km WSW of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug 10:23 UTCM 0.8 / 2.4 km - [info]Mammoth Mountain (16 km) - California, USA- 13km SSE of Mammoth Lakes, California
[Map]		USGS
Fri, 18 Aug 05:42 UTCM 1.7 / 1.8 km - [info]Long Valley (19 km) - California- 18km SE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug (11 earthquakes)
Thu, 17 Aug 21:09 UTCM 1.2 / 0.3 km - [info]Mammoth Mountain (10 km) - California, USA- 7km SSE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 21:08 UTCM 1.3 / 1.3 km - [info]Mammoth Mountain (13 km) - California, USA- 10km SSE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 17:49 UTCM 0.8 / 0.3 km - [info]Mammoth Mountain (6 km) - California, USA- 5km S of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 17:42 UTCM 1.1 / 1.9 km - [info]Mammoth Mountain (11 km) - California, USA- 7km SE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 14:39 UTCM 1.5 / 0.7 km - [info]Mammoth Mountain (24 km) - California, USA- 22km SSE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 13:31 UTCM 1.3 / 0.2 km - [info]Mammoth Mountain (21 km) - California, USA- 19km SSE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 05:52 UTCM 1.5 / 2 km - [info]Long Valley (20 km) - California- 19km SE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 05:08 UTCM 1.3 / 0.9 km - [info]Mammoth Mountain (21 km) - California, USA- 19km SE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 04:52 UTCM 0.3 / 0.8 km - [info]Mammoth Mountain (9 km) - California, USA- 6km SSE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 03:21 UTCM 1.4 / 0.5 km - [info]Long Valley (15 km) - California- 14km SE of Mammoth Lakes, California
[Map]		USGS
Thu, 17 Aug 00:31 UTCM 1.2 - [info]Mammoth Mountain (6 km) - California, USA- 4km S of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug (9 earthquakes)
Wed, 16 Aug 23:32 UTCM 1.1 / 0.5 km - [info]Mammoth Mountain (8 km) - California, USA- 8km S of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug 22:43 UTCM 2.0 / 1 km - [info]Mammoth Mountain (23 km) - California, USA- 21km SSE of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug 21:29 UTCM 1.3 / 0.4 km - [info]Long Valley (23 km) - California- 22km SE of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug 20:38 UTCM 1.6 / 2 km - [info]Mammoth Mountain (23 km) - California, USA- 21km SSE of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug 17:30 UTCM 0.9 / 1.1 km - [info]Mammoth Mountain (6 km) - California, USA- 5km S of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug 16:42 UTCM 2.7 / 8 km - [info]Mammoth Mountain (16 km) - California, USACENTRAL CALIFORNIA
I FELT IT
[Map]		EMSC
Wed, 16 Aug 16:00 UTCM 1.0 / 0.5 km - [info]Mammoth Mountain (7 km) - California, USA- 5km S of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug 15:52 UTCM 1.4 / 0.4 km - [info]Mammoth Mountain (6 km) - California, USA- 5km S of Mammoth Lakes, California
[Map]		USGS
Wed, 16 Aug 12:27 UTCM 0.9 / 3.5 km - [info]Long Valley (18 km) - California- 18km SE of Mammoth Lakes, California
[Map]		USGS
to top
 

More on VolcanoDiscovery:

Eruption Specials
Tours to erupting volcanoes: From time to time, we organize special tours to see volcanoes in eruption. These are often announced only few days or weeks in advance. Find out more!
Katla Earthquakes
Latest quakes at Katla volcano: One of Iceland's most active and dangerous volcanoes is showing signs of unrest and statistically due for a new eruption. Earthquakes could give a clue.
Bardarbunga update
Current activity of Bardarbunga volcano, Iceland: An intense seismic crisis started at Bárdarbunga volcano on 16 August 2014 and is continuing at the time of writing (23 Aug). It may or may not lead to a volcanic eruption, possibly under the Vatnajökull ice cap.
Follow updates as news come in!
Erta Ale eruption
Overflowing lava lake Jan 2017
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.