Shikotsu

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 42.688°N
  • 141.38°E

  • 1320 m
    4330 ft

  • 285040
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

There are no activity reports for Shikotsu.



 Available Weekly Reports

There are no Weekly Reports available for Shikotsu.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1981 Feb 27 (in or before) Unknown Confirmed 0 Historical Observations Tarumai
1978 Dec 12 1979 May 11 Confirmed 1 Historical Observations Tarumai (SE foot of summit dome)
1978 May 14 1978 May 17 Confirmed 1 Historical Observations Tarumai (SE foot of summit dome)
1954 Nov 19 1955 Feb 14 Confirmed 1 Historical Observations Tarumai
1954 May 2 1954 May 2 Confirmed 1 Historical Observations Tarumai
1953 Sep 14 (?) 1953 Sep 14 (?) Confirmed 1 Historical Observations Tarumai
1951 Jul 28 1951 Jul 28 Confirmed 2 Historical Observations Tarumai
1951 Jan 29 1951 Jan 29 Confirmed 2 Historical Observations Tarumai
[ 1944 Nov 25 ] [ 1944 Nov 25 ] Uncertain 1   Tarumai
1944 Jul 2 1944 Jul 2 Confirmed 1 Historical Observations Tarumai
1936 Nov 15 1936 Nov 26 Confirmed 1 Historical Observations Tarumai
1936 Apr 19 1936 Apr 19 Confirmed 1 Historical Observations Tarumai
1933 Dec 1 1933 Dec 14 Confirmed 2 Historical Observations Tarumai (east-west summit fissure)
1931 Oct 11 1931 Oct 24 Confirmed 1 Historical Observations Tarumai
1928 Sep 6 1929 Feb 10 Confirmed 1 Historical Observations Tarumai
1928 Jan 7 1928 Jan 7 Confirmed 2 Historical Observations Tarumai
1926 Oct 19 1926 Oct 30 Confirmed 2 Historical Observations Tarumai
1923 Feb 1923 Aug 23 Confirmed 1 Historical Observations Tarumai
1921 Jul 6 1921 Jul 6 Confirmed 1 Historical Observations Tarumai
1920 Jul 17 1920 Jul 23 Confirmed 1 Historical Observations Tarumai
1919 May 4 1919 May 4 Confirmed 2 Historical Observations Tarumai
1918 Jun 13 1918 Jul 31 Confirmed 1 Historical Observations Tarumai
1917 Apr 30 1917 May 12 Confirmed 2 Historical Observations Tarumai (east-west summit fissure)
1909 Jan 11 1909 Apr 22 Confirmed 3 Historical Observations Tarumai
1894 Aug 17 1894 Aug 17 Confirmed 2 Historical Observations Tarumai
1894 Feb 8 1894 Feb 8 Confirmed 2 Historical Observations Tarumai
1887 Sep 3 1887 Oct 8 Confirmed 2 Historical Observations Tarumai
1886 Apr 13 1886 Apr 28 Confirmed 2 Historical Observations Tarumai
1885 Jan 4 1885 Mar Confirmed 2 Historical Observations Tarumai
1883 Oct 7 1883 Nov 5 Confirmed 2 Historical Observations Tarumai
1874 Feb 8 1874 Feb 16 Confirmed 3 Historical Observations Tarumai
[ 1871 Dec 25 ] [ 1871 Dec 28 ] Uncertain 2   Tarumai
1867 Sep 8 Unknown Confirmed 2 Historical Observations Tarumai
1804 1817 Confirmed 3 Historical Observations Tarumai
1739 Aug 19 1739 Aug 31 Confirmed 5 Historical Observations Tarumai, Ta-a tephra
1707 ± 30 years Unknown Confirmed 2 Tephrochronology Eniwa (crater 3)
1667 Sep 23 1667 Sep 26 (?) Confirmed 5 Historical Observations Tarumai, Ta-b tephra
1550 ± 75 years Unknown Confirmed 2 Radiocarbon (corrected) Eniwa (crater 2)
1500 ± 150 years Unknown Confirmed 2 Radiocarbon (corrected) Eniwa (crater 1)
0050 BCE (?) Unknown Confirmed 3 Tephrochronology Tarumai, Ta-c3 tephra
0100 BCE ± 100 years Unknown Confirmed 2 Radiocarbon (corrected) Eniwa volcano (east side of summit)
0550 BCE (?) Unknown Confirmed 5 Radiocarbon (uncorrected) Tarumai, Ta-c1, Ta-c2 tephras
6950 BCE (?) Unknown Confirmed 5 Radiocarbon (uncorrected) Tarumai, Ta-d tephra

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.

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.

Katsui Y, Yokoyama I, Murozumi M, 1981b. Noboribetsu Spa. In: Katsui Y (ed) {Symp Arc Volc Field Excur Guide to Usu and Tarumai Volcanoes and Noboribetsu Spa, Part 3}, Tokyo: Volc Soc Japan, p 55-64.

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.

Nakagawa M, Furukawa R, Yoshimoto M, 2003. Calderas and active volcanoes in southwestern Hokkaido. IUGG 2003 Field Trip Guidebook, Volc Soc Japan, p 1-35.

Nakagawa M, Masuda K, Katsui Y, 1994. Recent eruptions of Eniwa volcano, post-Shikotsu caldera, southwestern Hokkaido. Bull Volc Soc Japan (Kazan), 39: 237-241.

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 13 x 15 km Shikotsu caldera, largely filled by the waters of Lake Shikotsu, was formed during one of Hokkaido's largest Quaternary eruptions about 31-34,000 years ago. The small andesitic Tarumai stratovolcano was then constructed on its SE rim and has been Hokkaido's most active volcano in historical time. Pyroclastic-flow deposits from Tarumai extend nearly to the Pacific coast. Two other Holocene post-caldera volcanoes, Fuppushi (adjacent to Tarumai) and Eniwa (on the opposite side of the caldera), occur on a line trending NW from Tarumai, and were constructed just inside the caldera rim. Minor eruptions took place from the summit of Eniwa volcano as late as the 17th century. The summit of Tarumai contains a small 1.5-km-wide caldera formed during two of Hokkaido's largest historical eruptions, in 1667 and 1739. Tarumai is now capped by a flat-topped summit lava dome that formed in 1909.