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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 43.608°N
  • 144.443°E

  • 574 m
    1883 ft

  • 285080
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Kussharo.

 Available Weekly Reports

There are no Weekly Reports available for Kussharo.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1320 ± 300 years Unknown Confirmed   Tephrochronology Atosanupuri, At-a tephra
0700 (?) Unknown Confirmed   Tephrochronology Atosanupuri
0450 (?) Unknown Confirmed   Tephrochronology Atosanupuri, At-b tephra
1550 BCE ± 1000 years Unknown Confirmed   Tephrochronology Atosanupuri
3550 BCE (?) Unknown Confirmed   Tephrochronology Atosanupuri
5800 BCE ± 1000 years Unknown Confirmed   Tephrochronology Atosanupuri

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.

Hayakawa Y, 1994a. A catalog of the volcanic eruptions during the last 2000 years in Japan. Sci Rpt Fac Education Gumma Univ, (in Japanese with English abs).

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

Japan Association Quaternary Research, 1987. Quaternary Maps of Japan: Landforms, Geology, and Tectonics. Tokyo: Univ Tokyo Press.

Japan Meteorological Agency, 1996. National Catalogue of the Active Volcanoes in Japan (second edition). Tokyo: Japan Meteorological Agency, 502 p (in Japanese).

Japan Meteorological Agency, 2013. National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency.

Kudo T, Hoshizumi H, 2006-. Catalog of eruptive events within the last 10,000 years in Japan, database of Japanese active volcanoes. Geol Surv Japan, AIST, http://riodb02.ibase.aist.go.jp/db099/eruption/index.html.

Kuno H, 1962. Japan, Taiwan and Marianas. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 11: 1-332.

Nakano S, Yamamoto T, Iwaya T, Itoh J, Takada A, 2001-. Quaternary Volcanoes of Japan. Geol Surv Japan, AIST, http://www.aist.go.jp/RIODB/strata/VOL_JP/.

The 20 x 26 km Kussharo caldera (also spelled Kutcharo or Kuccharo), is the largest of a cluster of calderas in NE Hokkaido. The caldera was formed in a series of major eruptions between about 340,000 and 30,000 years ago. Nakajima, a Holocene post-caldera dacitic-to-rhyolitic lava-dome complex, forms an island in the large lake that fills much of the western half of the caldera. The Holocene Atosanupuri stratovolcano and lava-dome complex is located near the center of the caldera, east of the crescent-shaped Lake Kutcharo. Many lava domes were formed between about 1000-10,000 years ago. No historical eruptions are known, although intense fumarolic activity occurs on and around Atosanupuri volcano and along the shores of Lake Kutcharo.