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Kolokol Group

Photo of this volcano
  • Russia
  • Kuril Volcanic Arc
  • Composite | Stratovolcano
  • 1973 CE
  • Country
  • Volcanic Province
  • Landform | Volc Type
  • Last Known Eruption
  • 46.042°N
  • 150.083°E

  • 1328 m
    4357 ft

  • 290120
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Weekly Report: 26 August-1 September 2009 Citation IconCite this Report

Based on analyses of satellite imagery, SVERT reported that on 26 August a gas-and-steam plume possibly containing ash rose from Berg (part of the Kolokol Group of volcanoes) to an altitude greater than 6 km (19,700 ft) a.s.l. and drifted NE.

Source: Sakhalin Volcanic Eruption Response Team (SVERT)


Most Recent Bulletin Report: April 1987 (SEAN 12:04) Citation IconCite this Report

Weak gas emission from the Berg and Trezubetz domes

Weak gas emission from the extrusive domes at Berg and Trezubetz was noted during a 6 November overflight. Five explosive eruptions and one dome-building episode are known between 1845 and 1970.

Information Contacts: G. Steinberg and B. Piskunov, Yuzhno-Sakhalinsk.

Weekly Reports - Index


2009: August


26 August-1 September 2009 Citation IconCite this Report

Based on analyses of satellite imagery, SVERT reported that on 26 August a gas-and-steam plume possibly containing ash rose from Berg (part of the Kolokol Group of volcanoes) to an altitude greater than 6 km (19,700 ft) a.s.l. and drifted NE.

Source: Sakhalin Volcanic Eruption Response Team (SVERT)


Bulletin Reports - Index

Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

12/1981 (SEAN 06:12) Weak gas release from the Berg and Trezubetz summit domes

04/1987 (SEAN 12:04) Weak gas emission from the Berg and Trezubetz domes




Information is preliminary and subject to change. All times are local (unless otherwise noted)


December 1981 (SEAN 06:12) Citation IconCite this Report

Weak gas release from the Berg and Trezubetz summit domes

Very weak gas emission was occurring from the summits of extrusive domes at both Berg and Trezubetz during the 20 September 1981 flight.

Information Contacts: G. Steinberg, Sakhalin Complex Institute.


April 1987 (SEAN 12:04) Citation IconCite this Report

Weak gas emission from the Berg and Trezubetz domes

Weak gas emission from the extrusive domes at Berg and Trezubetz was noted during a 6 November overflight. Five explosive eruptions and one dome-building episode are known between 1845 and 1970.

Information Contacts: G. Steinberg and B. Piskunov, Yuzhno-Sakhalinsk.

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 9 confirmed Holocene eruptive periods.

[ 2009 Aug 26 ] Uncertain Eruption

Episode 1 | Eruption Episode Berg
2009 Aug 26 - Unknown Evidence from Unknown

List of 3 Events for Episode 1 at Berg

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion Uncertain
   - - - -    - - - - Ash Uncertain
2009 Aug 26    - - - - VEI (Explosivity Index)

[ 2005 Jul 2 ± 182 days ] Uncertain Eruption

Episode 1 | Eruption Episode Berg
2005 Jul 2 ± 182 days - Unknown Evidence from Unknown

List of 3 Events for Episode 1 at Berg

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Phreatic activity Uncertain
   - - - -    - - - - Earthquakes (undefined)
2005    - - - - VEI (Explosivity Index)

1973 Jul 25 - 1973 Jul 26 (?) Confirmed Eruption Max VEI: 1

Episode 1 | Eruption Episode Berg (northern part of lava dome)
1973 Jul 25 - 1973 Jul 26 (?) Evidence from Observations: Reported

List of 3 Events for Episode 1 at Berg (northern part of lava dome)

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion weak or small
   - - - -    - - - - Ash
1973 Jul 25    - - - - VEI (Explosivity Index)

1970 Feb 16 ± 15 days - 1970 Mar 16 ± 15 days Confirmed Eruption Max VEI: 3

Episode 1 | Eruption Episode Berg
1970 Feb 16 ± 15 days - 1970 Mar 16 ± 15 days Evidence from Observations: Reported

List of 3 Events for Episode 1 at Berg

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash
1970 Mar 1 ± 30 days    - - - - VEI (Explosivity Index) VEI 3.

1952 Jan 15 ± 45 days Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode Berg
1952 Jan 15 ± 45 days - Unknown Evidence from Observations: Reported

List of 3 Events for Episode 1 at Berg

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Ash moderate
1952 Jan 15 ± 45 days    - - - - VEI (Explosivity Index)

1946 Apr 15 ± 45 days Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode Berg
1946 Apr 15 ± 45 days - Unknown Evidence from Observations: Reported

List of 2 Events for Episode 1 at Berg

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion weak or small
1946 Apr 15 ± 45 days    - - - - VEI (Explosivity Index)

1940 ± 6 years Confirmed Eruption  

Episode 1 | Eruption Episode Berg
1940 ± 6 years - Unknown Evidence from Observations: Reported

List of 1 Events for Episode 1 at Berg

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

1924 Mar 13 Confirmed Eruption Max VEI: 2 (?)

Episode 1 | Eruption Episode Trezubetz
1924 Mar 13 - Unknown Evidence from Observations: Reported

List of 3 Events for Episode 1 at Trezubetz

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Crater Parasitic.
1924 Mar 13    - - - - VEI (Explosivity Index)

1894 Jul 25 - 1894 Jul 26 Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode Berg ?
1894 Jul 25 - 1894 Jul 26 Evidence from Observations: Reported

List of 2 Events for Episode 1 at Berg ?

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
1894 Jul 25    - - - - VEI (Explosivity Index)

1845 - 1846 Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode Berg
1845 - 1846 Evidence from Observations: Reported

List of 2 Events for Episode 1 at Berg

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
1845    - - - - VEI (Explosivity Index)

1780 ± 10 years Confirmed Eruption Max VEI: 2 (?)

Episode 1 | Eruption Episode
1780 ± 10 years - Unknown Evidence from Observations: Reported

List of 1 Events for Episode 1

Start Date End Date Event Type Event Remarks
1780 ± 10 years    - - - - VEI (Explosivity Index)
Deformation History

There is no Deformation History data available for Kolokol Group.

Emission History

There is no Emissions History data available for Kolokol Group.

GVP Map Holdings

Maps are not currently available due to technical issues.

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included.

Smithsonian Sample Collections Database

The following 1 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 117640-2 Andesite -- --
External Sites