Ghegam Ridge

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 40.275°N
  • 44.75°E

  • 3597 m
    11798 ft

  • 214070
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Ghegam Ridge.

The Global Volcanism Program has no Weekly Reports available for Ghegam Ridge.

The Global Volcanism Program has no Bulletin Reports available for Ghegam Ridge.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1900 BCE ± 750 years Unknown Confirmed 0 Anthropology North part of eastern cone cluster

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.

Photo Gallery

Pyroclastic cones and lava domes dot the surface of snow-covered Ghegam Ridge (upper left), located west of Lake Sevan (right) in west-central Armenia. North lies to the upper right in this NASA Space Shuttle image. The volcanoes and associated lava flows cover a 65-km-long, 35-km-wide area west of Lake Sevan and are concentrated along 3 NNW-SSE-trending alignments. Lava flows from the central and eastern clusters flowed into Lake Sevan at the upper left-hand side of the lake.

NASA Space Shuttle image ISS006-E-42481, 2003 (
See title for photo information.
Snow-capped pyroclastic cones of the Ghegam Ridge volcanic field rise across Lake Sevan from a fishing village on its NE shore. The Ghegam Ridge volcanic field in west-central Armenia covers a 35-km-wide area between the capital city of Yerevan and Lake Sevan. Morphologically youthful lava flows from the central and eastern portions of Ghegam Ridge flowed into Lake Sevan.

Photo by Ivan Savov, 2002 (Smithsonian Institution).
See title for photo information.

Smithsonian Sample Collections Database

The following 34 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections. Catalog number links will open a window with more information.

Catalog Number Sample Description
NMNH 117574-100 Basaltic dolerite
NMNH 117574-101 Trachybasaltic andesite
NMNH 117574-102 Dacitic obsidian
NMNH 117574-103 Scoria
NMNH 117574-104 Basalt
NMNH 117574-105 Biotite dacite
NMNH 117574-106 Obsidian
NMNH 117574-107 Rhyolite
NMNH 117574-108 Scoria
NMNH 117574-134 Scoria
NMNH 117574-61 Scoria
NMNH 117574-62 Basalt
NMNH 117574-63 Basaltic andesite
NMNH 117574-67 Obsidian
NMNH 117574-68 Rhyolite
NMNH 117574-69 Scoria
NMNH 117574-70 Basalt
NMNH 117574-71 Scoria
NMNH 117574-72 Basalt
NMNH 117574-73 Scoria
NMNH 117574-74 Basalt
NMNH 117574-75 Basalt
NMNH 117574-86 Rhyolitic obsidian
NMNH 117574-87 Rhyodacite
NMNH 117574-90 Obsidian
NMNH 117574-91 Rhyolite
NMNH 117574-92 Obsidian
NMNH 117574-93 Basaltic andesite
NMNH 117574-94 Scoria
NMNH 117574-95 Rhyolite
NMNH 117574-96 Obsidian
NMNH 117574-97 Andesite
NMNH 117574-98 Rhyolite
NMNH 117574-99 Obsidian

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