Ghegam volcano

Updated: Jul 6, 2022 15:29 GMT - Refresh
stratovolcano, cinder cones 3597 m
Armenia, 40.23°N / 44.95°E
Current status: normal or dormant (1 out of 5)

The Ghegam Ridge, located in west-central Armenia between the capital city of Yerevan and Lake Sevan, contains a broad concentration of lava domes and pyroclastic cones of Pleistocene-to-Holocene age.

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Typical eruption style: explosive
Ghegam volcano eruptions: none in historic times
Lastest nearby earthquakes: No recent earthquakes

Background

The volcanoes and associated lava flows cover a 65-km-long, 35-km-wide area west of Lake Sevan and south of the Hrazdan River and are concentrated along 3 NNW-SSE-trending alignments. Lava flows from the central and eastern clusters flowed into Lake Sevan. Initial explosive eruptions at the Ghegam Ridge volcanic field were followed by the extrusion of rhyolitic obsidian lava domes and flows. The latest activity produced a series of andesitic and basaltic-andesite cinder cones and lava flows. The central and eastern portions of the Ghegam Ridge contains large areas of Holocene eruptions with morphologically fresh lava flows devoid of vegetation.

Ghegam Photos

Ghegam Ridge volcanic field with its highest volcano, mount Azhdahak, Sevan Lake, Armenia (Photo: WNomad)
Ghegam Ridge volcanic field with its highest volcano, mount Azhdahak, Sevan Lake, Armenia (Photo: WNomad)
Ghegam ridge, a young field of cinder cones and lava flows, is visible in the background behind a gorge with massive ash-flow layers exposed. (Photo: Tom Pfeiffer)
Ghegam ridge, a young field of cinder cones and lava flows, is visible in the background behind a gorge with massive ash-flow layers exposed. (Photo: Tom Pfeiffer)
 



Ghegam volcano tours:
Armenia - Land of Volcanoes and History (12-day walking & study tour to Armenia)

See also: Sentinel hub | Landsat 8 | NASA FIRMS
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