Inyo Craters

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 37.692°N
  • 119.02°W

  • 2629 m
    8623 ft

  • 323130
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Inyo Craters.

 Available Weekly Reports

There are no Weekly Reports available for Inyo Craters.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1380 ± 50 years Unknown Confirmed 4 Radiocarbon (corrected) S Deadman, Obsidian Flow, Glass Creek
0600 ± 75 years Unknown Confirmed 4 Radiocarbon (uncorrected) Wilson Butte
4050 BCE (?) Unknown Confirmed   Hydration Rind North of Deadman Creek

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Bailey R A, 1980. . (pers. comm.).

Bailey R A, Miller C D, Sieh K, 1989. Excursion 13B: Long Valley caldera and Mono-Inyo Craters volcanic chain. New Mexico Bur Mines Min Resour Mem, 47: 227-254.

Bateman P C, Wahrhaftig C, 1966. Geology of the Sierra Nevada. Calif Div Mines Geol Bull, 190: 107-172.

Bursik M, Reid J, 2004. Lahar in Glass Creek and Owens River during the Inyo eruption, Mono-Inyo Craters, California. J Volc Geotherm Res, 131: 321-331.

Hildreth W, 2004. Volcanological perspectives on Long Valley, Mammoth Mountain, and Mono Craters: several contiguous but discrete systems. J Volc Geotherm Res, 136: 169-198.

Huber N K, Rinehart C D, 1967. Cenozoic volcanic rocks of the Devils Postpile quadrangle, eastern Sierra Nevada California. U S Geol Surv Prof Pap, 554-D: 1-21.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Rinehart C D, Ross D C, 1964. Geology and mineral deposits of the Mount Morrison quadrangle Sierra Nevada, California. U S Geol Surv Prof Pap, 385: 1-106.

Sampson D E, Cameron K L, 1987. The geochemistry of the Inyo volcanic chain: multiple magma systems in the Long Valley region, eastern California. J Geophys Res, 92: 10,403-10,421.

Sorey M L, Evans W C, Kennedy B M, Farrar C D, Hainsworth L J, Hausback B, 1998. Carbon dioxide and helium emissions from a reservoir of magmatic gas beneath Mammoth Mountain, California. J Geophys Res, 103: 15,303-15,323.

Wood S H, 1977. Distribution, correlation, and radiocarbon dating of late Holocene tephra, Mono and Inyo Craters, eastern California. Geol Soc Amer Bull, 88: 89-95.

The Inyo Craters are a 12-km-long chain of silicic lava domes, lava flows, and explosion craters along the eastern margin of Sierra Nevada south of Mono Craters near the town of Mammoth. Inyo Craters overtop the NW rim of the Pleistocene Long Valley caldera and extend onto the caldera floor, but are chemically and magmatically part of a different volcanic system. Postglacial explosion pits of Mammoth Mountain to the south are an extension of Inyo Craters (Bailey 1980). The latest eruptions at Inyo Craters took place about 600 years ago, when explosive eruptions accompanied formation of the South Deadman, Obsidian Flow, and Glass Creek rhyolitic lava domes and lava flows. The Inyo Crater Lakes are small phreatic craters that formed during this eruption on the south flank of the Pleistocene Deer Mountain rhyolite dome of the Long Valley caldera.