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Random pictures
Location of recent quakes in the Coso volcanic field (red=past 48 hours, yellow=past week)
Tuesday, Dec 11, 2012
The recent earthquake swarm at Coso Volcanic Field seems to be over. ... [more]
 

Coso volcano

stratovolcano 2400 m / 7,874 ft
California, USA (mainland exept Alaska), 36.03°N / -117.82°W
Current status: dormant (1 out of 5)
Coso volcano books
Last update: 26 Jun 2013 (seismic swarms)
Typical eruption style: Explosive
Coso volcano eruptions: none during the past 10,000 years
TimeMag. / DepthDistanceLocation
Mon, 27 Mar
Mon, 27 Mar 06:23 UTCM 0.8 / 1.8 km17 km- 28km E of Coso Junction, CA
Sun, 26 Mar
Sun, 26 Mar 06:26 UTCM 1.0 / 2.3 km6 km- 17km NE of Little Lake, CA
Sun, 26 Mar 03:42 UTCM 1.7 / 0.8 km37 km- 21km WNW of Inyokern, CA
Sun, 26 Mar 02:59 UTCM 1.3 / 1.1 km37 km- 21km WNW of Inyokern, CA
Sun, 26 Mar 02:54 UTCM 1.4 / 0.7 km37 km- 21km WNW of Inyokern, CA
View all recent quakes
The Coso volcanic field is located east of the Sierra Nevada Range at the western edge of the Basin and Range province, California. It consists of 38 old rhyolitic lava domes and basaltic cinder cones covering a 400 sq km area. volcano is located 200 km north of Los Angeles, California.
Eruptions in this area over the past 4 million years produced 35 km3 of lava, the youngest eruptions are probably from the basaltic Volcano Peak cinder cone and occurred more than 33,000 years ago.
Coso Geothermal System
There is geothermal activity in an ENE trending zone between Sugarloaf Mountain and the Coso Hot Springs. The Coso Hot Springs have fumaroles and intermittently active geysers. Fumaroles at Devils Kitchen and the adjacent Nicol area are located in an explosion crater surrounding a rhyolite lava dome.

Background:

The latest dated eruption formed the Volcano Peak basaltic cinder cone and lava flow and was Potassium-Argon dated at 39,000 +/- 33,000 years ago, but the youngest lava dome may even be younger than 11,000 years ago. (source: GVP)


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