Ghegam Ridge

Photo of this volcano
  • Armenia
  • Mediterranean and Western Asia
  • Volcanic field
  • 1900 BCE
  • 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.

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.

Eruptive History

There is data available for 1 Holocene eruptive periods.

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
Deformation History

There is no Deformation History data available for Ghegam Ridge.

Emission History

There is no Emissions History data available for Ghegam Ridge.

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, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 117574-100 Basaltic Dolerite Atis --
NMNH 117574-101 Trachybasaltic Andesite Atis --
NMNH 117574-102 Dacitic Obsidian Atis --
NMNH 117574-103 Scoria Atis --
NMNH 117574-104 Basalt Atis --
NMNH 117574-105 Biotite Dacite Atis --
NMNH 117574-106 Obsidian Gutansar --
NMNH 117574-107 Rhyolite Gutansar --
NMNH 117574-108 Scoria Gutansar --
NMNH 117574-134 Scoria Gutansar --
NMNH 117574-61 Scoria Armagan --
NMNH 117574-62 Basalt Armagan --
NMNH 117574-63 Basaltic Andesite Armagan --
NMNH 117574-67 Obsidian Spitaksar --
NMNH 117574-68 Rhyolite Spitaksar --
NMNH 117574-69 Scoria Sevckar --
NMNH 117574-70 Basalt Sevckar --
NMNH 117574-71 Scoria Sevckar --
NMNH 117574-72 Basalt Sevckar --
NMNH 117574-73 Scoria Mazaz --
NMNH 117574-74 Basalt Mazaz --
NMNH 117574-75 Basalt Mazaz --
NMNH 117574-86 Rhyolitic Obsidian Fontan Dome; Gyumush Dome --
NMNH 117574-87 Rhyodacite Gyumush Dome --
NMNH 117574-90 Obsidian Spitaksar --
NMNH 117574-91 Rhyolite Spitaksar --
NMNH 117574-92 Obsidian Spitaksar --
NMNH 117574-93 Basaltic Andesite Spitaksar --
NMNH 117574-94 Scoria Spitaksar --
NMNH 117574-95 Rhyolite Geghasar --
NMNH 117574-96 Obsidian Geghasar --
NMNH 117574-97 Andesite Geghasar --
NMNH 117574-98 Rhyolite Atis --
NMNH 117574-99 Obsidian Atis --
Affiliated Sites