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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Alney-Chashakondzha
Glacial valleys descend from the western side of Alney, which along with Chashakondzha, forms one of the largest volcanic complexes of the Sredinny Range. This is one of the few large stratovolcanoes in the Sredinny Range known to have been active throughout the Holocene, with more than 30 documented pyroclastic deposits. Scoria cones on the eastern flanks formed during the Holocene. Copyrighted photo by Adam Kirilenko, 2003.
Volcano Number:
300450
Volcano Name:
Alney-Chashakondzha
Country:
Russia
Volcano Type:
Stratovolcano
Last Eruption:
1600 CE
Elevation:
2570m
Tectonic Setting:
Subduction zone / Continental crust (> 25 km)
Pop. within 30km:
3
Pop. within 100km:
10679
Latitude:
56.656
Longitude:
159.647
Details
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The glacier-capped Alney-Chashakondzha complex, one of the largest volcanoes of the Sredinny Range, consists of two large mostly Pleistocene andesitic stratovolcanoes constructed on a large Pliocene shield volcano. Both Alney on the north and Chashakondzha on the south are capped with andesitic lava domes. Three rhyodacitic-to-rhyolitic lava domes and associated lava flows were emplaced along ring faults enclosing a 15 x 20 km area. Two cinder cones on the east flanks of Alney and Chashakondzha erupted about 2600 years ago and produced lava flows, one of which traveled as far as 9 km. Alney is one of the few large stratovolcanoes in the Sredinny Range known to have been active throughout the Holocene, with more than 30 documented pyroclastic deposits. The last intense eruption took place about 350 years ago.
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
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Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.
Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
Sorry. No data exist for this volcano in the EarthChem Portal.
Data from the SESAR Database
Sorry. No data exist for this volcano in the SESAR database.
Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.
Data from UNAVCO
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Data from USIEI
Sorry. This volcano is not covered by any USIEI projects
Data from IRIS FDSNWS
Sorry. No IRIS data found for this volcano.