Asacha

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 52.355°N
  • 157.827°E

  • 1910 m
    6265 ft

  • 300058
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Asacha.

The Global Volcanism Program has no Weekly Reports available for Asacha.

The Global Volcanism Program has no Bulletin Reports available for Asacha.

The Asacha group is a complex massif of Pleistocene-to-Holocene volcanoes located within a distinctly fault-bounded crustal block WSW of Mutnovsky volcano. An ancestral Asacha shield volcano, Zheltyi stratovolcano to the east, a younger Asacha stratovolcano, and the small Tumanov lava cone (the best-preserved major cone of the Asacha volcano group) were constructed during the late Pleistocene. Ten lava domes dot the flanks of the Asacha volcanoes. Most of these were formed during the Pleistocene, but some may be early Holocene in age. Also during the Holocene, basaltic cinder cones and lava flows related to regional volcanism were erupted along the western and southern flanks of the Asacha complex. A major volcano-tectonic earthquake swarm occurred near Zheltyi volcano in 1983, suggesting that the complex remains volcanically active.

The Global Volcanism Program is not aware of any Holocene eruptions from Asacha. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Asacha page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.


Cones

Feature Name Feature Type Elevation Latitude Longitude
Tumanov Stratovolcano
Zheltyi Stratovolcano 1883 m 52° 21' 0" N 154° 54' 0" E
The glacier-filled southern summit crater of Mutnovsky volcano is seen here from the NE with Asacha volcano in the right distance. This crater is part of a 1.5 x 2.1 km wide double crater with steep walls 50-250-m high that caps the summits of northern and southern Mutnovsky stratovolcanoes. Four smaller craters cut the northern rims of the double summit crater complex. A vigorous steam plume rises from the historically active crater, which cuts the western rim of northern Mutnovsky crater.

Photo by Oleg Volynets (Institute of Volcanology, Petropavlovsk).
The Asacha volcano group is seen here looking WSW from the slopes of Mutnovsky volcano. Most of the complex was constructed during the Pleistocene, but some of a group of ten lava domes dotting the flanks of the complex may be early Holocene in age. Also during the Holocene, basaltic cinder cones and lava flows related to regional volcanism were erupted along the western and southern flanks of the Asacha complex.

Photo by Oleg Volynets (Institute of Volcanology, Petropavlovsk).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. 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.

Kozhemyaka N N, Litasov N E, Vazheevskaya A A, 1984. The Asacha group of volcanoes in Kamchatka. Volc Seism, 1984(3): 14-24 (English translation 1988, 6: 365-378).

Krijanovsky N, 1934. Volcanoes of Kamchatka. Geol Soc Amer Bull, 45: 529-549.

Vlasov G M, 1967. Kamchatka, Kuril, and Komandorskiye Islands: geological description. In: {Geol of the USSR}, Moscow, 31: 1-827.

Volcano Types

Complex

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite
Minor
Dacite
Rhyolite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
34
238,467

Affiliated Databases

Large Eruptions of Asacha Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.