Japan (administered by Russia) · Complex volcano
Grozny Ridge
Etorofu-Yakeyama [Grozny Group]
- Type
- Complex volcano
- Elevation
- 1147m
- Last eruption
- 2013
- Type
- Complex volcano
- Country
- Japan (administered by Russia)
- Region
- Northwestern Pacific / Kuril Volcanic Arc
- Elevation
- 1147m
- Coordinates
- 45.011, 147.872
- Last eruption
- 2013
- Tectonic setting
- Subduction zone / Intermediate crust (15-25 km)
- Landform
- Composite
- Major rock type
- Andesite / Basaltic andesite
Geological summary
The Etorofu-Yakeyama (Ivan Grozny) complex is located in the center of Iturup Island. It has a 3-3.5 km diameter caldera open to the south, where a large extrusive andesitic dome was emplaced.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Grozny Group is a complex volcano located in the central part of Iturup Island, Kuril Islands, controlled by Russia, and claimed by Japan.
Wikipedia · CC BY-SA · Read full article →
Eruption history
7 recordedGlossaryRecord summary
- Confirmed eruptions
- 7
- Uncertain eruptions
- 0
- Span of confirmed record
- 1968 – 2013
- Largest confirmed eruption
- VEI 2 (2013, the most recent of 4)
- Confirmed eruptions since 1900
- 7
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
Detailed timeline
- 2013VEI 2Observed2013-02-16 – 2013-04-04Etorofu-Yake-yama / Ivan Grozny
- 2012VEI 2Observed2012-08-16 – 2012-08-25Etorofu-Yake-yama / Ivan Grozny
- 1989VEI 2Observed1989-05-03 – 1989-08-05Ivan Grozny
- 1973VEI 1Observed1973-01-16 – 1973-01-16Ivan Grozny
- 1973VEI 2Observed1973-05-16 – 1973-05-17Ivan Grozny (N flank of cent. dome)
- 1970VEI 1Observed1970-07-02 – end unknownIvan Grozny
- 1968VEI 1Observed1968-02-16 – 1968-02-16Ivan Grozny
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.