Ivao Group

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 45.77°N
  • 149.68°E

  • 1426 m
    4677 ft

  • 290111
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Ivao Group.

 Available Weekly Reports

There are no Weekly Reports available for Ivao Group.

There are no Holocene eruptions known for Ivao Group. If this volcano has had large eruptions prior to 10,000 years ago, information might be found in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

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.

Gorshkov G S, 1970. Volcanism and the Upper Mantle; Investigations in the Kurile Island Arc. New York: Plenum Publishing Corp, 385 p.

The Ivao group of cones along the Krishtofovich Ridge of SW Urup Island contains several well-preserved cones of Holocene age. The first of a group of three young cones that formed along a NW-SE line is 1426-m-high Ivao cone, which marks the high point of Urup Island at the NW end of the chain. The SE-most cone bisects a glacial valley, forming Lake Ivao. The elongated central cone, Krutaya Mountain, is the youngest, and produced a viscous lava flow that traveled to the east.