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Gamchen

Photo of this volcano
  • Country
  • Volcanic Region
  • Landform | Volc Type
  • Last Known Eruption
  • 54.974°N
  • 160.703°E

  • 2,539 m
    8,330 ft

  • 300210
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports available for Gamchen.

The Global Volcanism Program has no Weekly Reports available for Gamchen.

The Global Volcanism Program has no Bulletin Reports available for Gamchen.

Eruptive History

There is data available for 3 confirmed eruptive periods.

0188 BCE ± 80 years Confirmed Eruption (Explosive / Effusive) VEI: 3

Episode 1 | Eruption (Explosive / Effusive)
0188 BCE ± 80 years - Unknown Evidence from Correlation: Tephrochronology
 A marker tephra layer was listed by Zelenin et al. (2020), citing a personal communication from O.A. Braitseva, with a modelled age of 2,138 ± 80 cal BP.

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Tephra
   - - - -    - - - - VEI (Explosivity Index) VEI 3. Large enough to produce a widespread marker layer.

0550 BCE (?) Confirmed Eruption (Explosive / Effusive)  

Episode 1 | Eruption (Explosive / Effusive) SE flank (Barany, Lukovitsa)
0550 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 3 Events for Episode 1 at SE flank (Barany, Lukovitsa)

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava dome
   - - - -    - - - - Ash

1650 BCE (?) Confirmed Eruption (Explosive / Effusive)  

Episode 1 | Eruption (Explosive / Effusive) SE flank (Barany)
1650 BCE (?) - Unknown Evidence from Correlation: Tephrochronology
 The earliest tephra deposits from Barany (Baranii) cone immediately underlie a 3,500 years BP tephra layer from Avachinsky, and activity at Barany was considered to have began about 3,600 radiocarbon years ago (Braitseva et al., 2002-). An ash layer from Gamchen is stratigraphically located between the ~3,800 BP eruption of Avachinsky and the ~2,900 BP eruption of Kizimen (Melekestsev et al., 1995). Another tephra layer from Gamchen is stratigraphically between a ~3,800 BP tephra from Avachinsky and a deposit with a 5,490 ± 400 14C age (Melekestsev et al., 1995), but the onset of activity at Barany (the only Holocene cone of Gamchen) was thought to have begun 3,600 years ago (Braitseva et al., 2002-).

List of 2 Events for Episode 1 at SE flank (Barany)

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash

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.

Smithsonian Sample Collections Database

There are no samples for Gamchen in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

External Sites