Ghegam Ridge

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 40.275°N
  • 44.75°E

  • 3597 m
    11798 ft

  • 214070
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

There are no activity reports for Ghegam Ridge.



 Available Weekly Reports

There are no Weekly Reports available for Ghegam Ridge.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1900 BCE ± 1000 years Unknown Confirmed 0 Anthropology North part of eastern cone cluster

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. 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. Additional discussion of data sources can be found under Volcano Data Criteria.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Karakhanian A, Djrbashian R, Trifonov V, Philip H, Arakelian S, Avagian A, 2002. Holocene-historical volcanism and active faults as natural risk factors for Armenia and adjacent countries. J Volc Geotherm Res, 113: 319-344.

Karakhanian A, Jrbashyan R, Trifonov V, Philip H, Arakelian S, Avagyan A, Baghdassaryan H, Davtian V, Ghoukassyan Y, 2003. Volcanic hazards in the region of the Armenian nuclear power plant. J Volc Geotherm Res, 126: 31-62.

Sviatlovsky A E, 1959. Atlas of Volcanoes of the Soviet Union. Moscow: Akad Nauk SSSR, 170 p (in Russian with English summary).

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. 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.