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Map of recent quakes near the Salton Sea
Thursday, Feb 21, 2013
A small swarm of earthquakes has been occurring under the SE shore area of the Salton Sea during the past few days, but the recorded quakes are very small and should not be reason to worry. [more]
Tuesday, Oct 30, 2012
A recent study indicates that the rhyolite lava domes in the Salton Sea area are less than 3,000 years old, which confirms that the volcanic system is to be considered potentially active. ... [more]

Salton Buttes volcano

lava domes -40 m / -131 feet
California, USA (mainland exept Alaska), 33.2°N / -115.62°W
Current status: dormant (1 out of 5)
Last update: 26 Jun 2013
Typical eruption style: Explosive
Salton Buttes volcano eruptions: about 3000 years ago
TimeMag. / DepthDistanceLocation
Sat, 1 Nov
Sat, 1 Nov 01:30 UTCM 1.3 / 1.1 km6 km13km WNW of Calipatria, California
Tue, 28 Oct
Tue, 28 Oct 13:07 UTCM 2.2 / 20.2 km12 km6km N of Westmorland, California
Tue, 28 Oct 13:07 UTCM 1.9 / 1.3 km11 km13km WNW of Calipatria, California
Tue, 28 Oct 09:54 UTCM 1.8 / 0.7 km2 km9km WSW of Niland, California
Tue, 28 Oct 08:24 UTCM 2.4 / 0.2 km2 km9km WSW of Niland, California
View all recent quakes
The Salton Buttes volcanic field consist of 5 small rhyolitic lava domes built above sediments of the Colorado River delta within the Salton Sea geothermal field, located at the SE margin of the Salton Sea, California.

Background:

Recent dating of young zircons (which typically crystallize prior to eruption) place the date of the lava domes at 10,300 +/- 1000 years ago, consistent with early Holocene hydration rind dates from Obsidian Butte. Wave-cut benches originating from Lake Cahuilla, which existed from about 20,500 to 3000 years ago, prior to the 20th century formation of the Salton Sea due to an accidental spill-over of the Colorado River, are found on all of the domes. Older, sediment-buried Pleistocene rhyolitic lava domes have been found in geothermal drill holes. The Salton Sea geothermal field produces saline geothermal brines.
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Source: GVP Salton Buttes information


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