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Volcanoes of Hokkaido (52)

Hokkaido is the northernmost of Japan's 4 main islands. Tectonically, it was formed by the collision of the Kuril Volcanic Arc with the Northeast Japan Volcanic Arc at the central part of Hokkaido about during the Middle Miocene (ca. 12 million years ago).

The volcanoes of Hokkaido belong accordingly to 3 different provinces:
1 the eastern region in the Northeast Japan Arc,
2 the central region in the arc-arc collision zone,
3 the western region representing the SW end of the Kuril Arc.

The chain of volcanoes ("volcanic front") parallel to the Japan and Kuril trenches runs E-W from the eastern region through the central region and then turns to N-S in the western region.

Source and further information: Introduction to the Landforms and Geology of Japan (GLGArcs)

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Significant volcanic eruptions: Hokkaido

In historic times, at least 9 volcanoes have been active in Hokkaido, including Akan, Tokachi, and Komaga-take volcanoes. A total of 107 eruptions have been witnessed and documented since around 1626 AD.
The table below lists the most recent volcanic eruptions, significant eruptive episodes or related events in Hokkaido since 1900.

Date	Volcano	VEI	Region	Deaths	Damage
2008 Nov 18 - Nov 28	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
2006 Mar 21	Akan NE flank of Me-Akan	1	Hokkaido (Japan)
2004 Feb 25 - Apr 19	Tokachi 1962-II Crater	1?	Hokkaido (Japan)
2000 Mar 31 - 2001 Sep 15 ±5 d.	Usu Usu N flank (Kompira-yama & W Nishi-yama)	2	Hokkaido (Japan)
2000 Sep 4 - Nov 8	Komaga-take	1	Hokkaido (Japan)
1998 Nov 9	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
1998 Oct 25	Komaga-take 1996 crater	2	Hokkaido (Japan)
1996 Nov 21	Akan Me-Akan (Ponmachineshiri crater no. 4)	1	Hokkaido (Japan)
1996 Mar 5 - Mar 12 ?	Komaga-take 1929 crater and summit crater fissure	1	Hokkaido (Japan)
1988 Dec 10 ? - 1989 May 16 ±15 d.	Tokachi 1962 Crater	2	Hokkaido (Japan)
1988 Jan 5 - Feb 18 ?	Akan Me-Akan (SE rim of Ponmachineshiri)	1	Hokkaido (Japan)
1985 Jun 19 - Jun 22	Tokachi East wall of 1962 crater	1	Hokkaido (Japan)
1984 May 1	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
1977 Aug 7 - 1982 Mar 16 ±15 d.	Usu Usu-Shinzan	3	Hokkaido (Japan)
1981 Feb 27	Shikotsu Tarumai	1	Hokkaido (Japan)
1978 Dec 12 - 1979 May 11	Shikotsu Tarumai (SE foot of summit dome)	1	Hokkaido (Japan)
1978 Oct 24 (eruption 1977 Aug 7 - 1982 Mar 16 ±15 d.)	Usu	3	Hokkaido (Japan)	3		Info
1978 Oct 24: Deaths at Toyako-onsen resulted from mudflows derived from newly deposited tephra. 2 injuries also reported. (reference #9675) October 16 and 24, 1978: Rain caused a secondary lahar resulting in 2 deaths, 1 missing person, 2 slight injuries, damage to 196 houses, damage to 9 other buildings, and damage to agricultural and forest equipment, civil engineering facilities, and sewer and water system. (reference #12936) Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1978 May 14 - May 17	Shikotsu Tarumai (SE foot of summit dome)	1	Hokkaido (Japan)
1977 Aug 7 (eruption 1977 Aug 7 - 1982 Mar 16 ±15 d.)	Usu	3	Hokkaido (Japan)	3		Info
1977 Aug 7: Three non-eruptive fatalities occurred during evacuation. (reference #9675) Cited references #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1966 Jun 15 ±5 d.	Akan Me-Akan (Nakamachineshiri)	1	Hokkaido (Japan)
1965 May 15 ±5 d.	Akan Me-Akan (Nakamachineshiri)	1	Hokkaido (Japan)
1964 Jun 18 - Jul 4 ?	Akan Me-Akan (Nakamachineshiri)	1	Hokkaido (Japan)
1962 Jun 29 - Sep 16 ±15 d.	Tokachi South of Shin-funkako	3	Hokkaido (Japan)
1962 Jun 29 (eruption 1962 Jun 29 - Sep 16 ±15 d.)	Tokachi	3	Hokkaido (Japan)	5		Info
1962 Jun 29: 5 killed, 11 injured by falling blocks. (reference #1492) Sulfur mining office at edge of Taisho crater damaged by volcanic blocks. 5 dead, 11 injured. (reference #12936) Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1962 Apr 28	Akan Me-Akan (Nakamachineshiri)	1	Hokkaido (Japan)
1961 Aug 14	Tokachi NW of Kami-Horokamettoku-yama	1	Hokkaido (Japan)
1960 Sep 16 ±15 d.	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
1959 Aug 15 ±5 d. - Nov 25	Tokachi NE of Shin-funkako (Showa Crater)	1	Hokkaido (Japan)
1959 May 15 ±5 d. - Oct 16 ±15 d.	Akan Me-Akan (Naka- and Ponmachineshiri)	1	Hokkaido (Japan)
1958 Oct 4	Tokachi NE of Shin-funkako (Showa Crater)	1	Hokkaido (Japan)
1958 Feb 23	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
1957 Feb 26 - Sep 5	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
1956 Mar 18 - Oct 31	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
1956 Jun 16 ±15 d.	Tokachi NE of Shin-funkako (Showa Crater)	1	Hokkaido (Japan)
1955 Nov 19	Akan Me-Akan (Ponmachineshiri)	1	Hokkaido (Japan)
1954 Nov 19 - 1955 Feb 14	Shikotsu Tarumai	1	Hokkaido (Japan)
1954 Sep 16 ±15 d.	Tokachi NE of Shin-funkako (Showa Crater)	1	Hokkaido (Japan)
1954 May 2	Shikotsu Tarumai	1	Hokkaido (Japan)
1954 Jan 7 ? - Apr 13	Akan Me-Akan (Nakamachineshiri)	1	Hokkaido (Japan)
1953 Sep 14 ?	Shikotsu Tarumai	1	Hokkaido (Japan)
1952 Aug 17	Tokachi NE of Shin-funkako (Showa Crater)	?	Hokkaido (Japan)
1951 Jul 28	Shikotsu Tarumai	2	Hokkaido (Japan)
1951 Jan 29	Shikotsu Tarumai	2	Hokkaido (Japan)
1944 Jun 23 - 1945 Sep 19	Usu Usu East flank (Showa-Shinzan)	2	Hokkaido (Japan)
1944 Dec 28 (eruption 1944 Jun 23 - 1945 Sep 19)	Usu	2	Hokkaido (Japan)	1		Info
1944 Dec 28: Child suffocated by ash fall. (reference #9675) Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1944 Aug 26 (eruption 1944 Jun 23 - 1945 Sep 19)	Usu	2	Hokkaido (Japan)	1	light	Info
1944 Aug 26: One fatality from gas inhalation. (reference #9675) 1 small child was killed and a house burned down. (reference #12936) Cited references #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1944 Jul 11 (eruption 1944 Jun 23 - 1945 Sep 19)	Usu	0	Hokkaido (Japan)	1		Info
1944 Jul 11: July 11: Pyroclastic surge killed 1 person and caused damage to protected forest land and houses. Crop damage. (reference #12936) Cited references #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1944 Jul 2	Shikotsu Tarumai	1	Hokkaido (Japan)
1942 Nov 16 - Nov 18	Komaga-take NW-SE 1.6-km fissure	3	Hokkaido (Japan)
1937 Mar 17 - Mar 19	Komaga-take	1	Hokkaido (Japan)
1936 Nov 15 - Nov 26	Shikotsu Tarumai	1	Hokkaido (Japan)
1935 Dec - 1936 Oct	Shiretoko-Iozan NW flank	1	Hokkaido (Japan)
1936 Apr 19	Shikotsu Tarumai	1	Hokkaido (Japan)
1933 Dec 1 - Dec 14	Shikotsu Tarumai (east-west summit fissure)	2	Hokkaido (Japan)
1931 Oct 11 - Oct 24	Shikotsu Tarumai	1	Hokkaido (Japan)
1931 May 16	Tokachi	1	Hokkaido (Japan)
1929 Jun 17 - Sep 6	Komaga-take SE and NE of Ansei Crater	4	Hokkaido (Japan)
1929 Jun 17 (eruption 1929 Jun 17 - Sep 6)	Komaga-take	4	Hokkaido (Japan)	2	catastrophic	Info
1929 Jun 17: 2 killed and 4 injured by pyroclastic fall; Volcano Letter (VL) 372 (1932) reports 1 death, probably as a result of pumice flows. (reference #9675) June 17: Volcanic blocks killed 2 people (including those in houses which collapsed due to volcanic blocks), injured 4 people, and killed 136 livestock. 1,915 houses burned down, were buried, or partially collapsed. Ash fall, pyroclastic flow, volcanic gas, and lahar caused damage to mountain forest land. Ash fall caused significant damage to agricultural and pasture land. (reference #12936) Cited references #1643 Jaggar, T.A. (1932): Recent eruptions in Japan. The Volcano Letter, 372: 1-3 #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1928 Sep 6 - 1929 Feb 10	Shikotsu Tarumai	1	Hokkaido (Japan)
1928 Dec 4 - Dec 25	Tokachi Shin-funkako	1	Hokkaido (Japan)
1928 Jan - May 23	Tokachi Shin-funkako	1	Hokkaido (Japan)
1928 Mar 28	Komaga-take	1	Hokkaido (Japan)
1928 Jan 7	Shikotsu Tarumai	2	Hokkaido (Japan)
1925 Nov 20 - 1927 Sep	Tokachi Shin-funkako	3	Hokkaido (Japan)
1926 Oct 19 - Oct 30	Shikotsu Tarumai	2	Hokkaido (Japan)
1926 Sep 8 (eruption 1925 Nov 20 - 1927 Sep)	Tokachi	3	Hokkaido (Japan)			Info
1926 Sep 8: 2 people went missing near the crater due to an eruption. (reference #12936) Cited references #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1926 May 24 (eruption 1925 Nov 20 - 1927 Sep)	Tokachi	3	Hokkaido (Japan)	144	catastrophic	Info
1926 May 24: Initial explosion destroyed hot spring bath house killing 3. Second explosion 4 hours later produced avalanche from Cone and hot mudflows Which swept down Hurano valley mixed with snowmelt reaching town 20 km W of crater in 26 minutes. 137 killed, 207 or more injured, and 5,080 houses destroyed in Hurano Valley. Finch cites newspaper reports as suggesting 400 lives lost - lava flows, floods and explosions each taking a share - with 144 bodies recovered in 2 days. Witham lists range of 144-207. (reference #9675) A melted snow lahar occurred, burying Kamifurano and Biei. 144 dead or missing, approximately 209 injured. 372 buildings damaged, 68 livestock killed, 602 birds killed, and mountain forest, farmland, road, bridge, and railroads damaged. (reference #12936) Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1924 Jul 31	Komaga-take	2	Hokkaido (Japan)
1923 Feb - Aug 23	Shikotsu Tarumai	1	Hokkaido (Japan)
1923 Feb 27 - Mar 15	Komaga-take	2	Hokkaido (Japan)
1922 May 22	Komaga-take	2	Hokkaido (Japan)
1921 Jul 6	Shikotsu Tarumai	1	Hokkaido (Japan)
1920 Jul 17 - Jul 23	Shikotsu Tarumai	1	Hokkaido (Japan)
1919 Jun 17 - Jul 26	Komaga-take SE of Ansei Crater	2	Hokkaido (Japan)
1919 May 4	Shikotsu Tarumai	2	Hokkaido (Japan)
1918 Jun 13 - Jul 31	Shikotsu Tarumai	1	Hokkaido (Japan)
1917 Apr 30 - May 12	Shikotsu Tarumai (east-west summit fissure)	2	Hokkaido (Japan)
1910 Jul 25 - Nov	Usu Usu North flank (Meiji-Shinzan)	2	Hokkaido (Japan)
1910 Jul 25 (eruption 1910 Jul 25 - Nov)	Usu	2	Hokkaido (Japan)	1		Info
1910 Jul 25: Death in lahar. (reference #9675) July 24: 15 buildings in Abuta partially destroyed by earthquakes. July 25: Ash fall caused damage to houses, mountain forests, and agricultural land. July 26: 1 person was killed in lahar flow. (reference #12936) Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. #9675 Siebert, Lee, Tom Simkin, Paul Kimberly (2010): Fatalities & Evacuations, Volcanoes of the World, Third Edition, Geoscience Press, Inc., University of California Press, Smithsonian Institution, Washington, D.C., p. 329-347. #12936 Japan Meteorological Agency and Volcanological Society of Japan (2013): National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. [accessed May 20, 2021] Link Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1909 Jan 11 - Apr 22	Shikotsu Tarumai	3	Hokkaido (Japan)
1905 Aug 19 - Sep 1 ?	Komaga-take South of Ansei Crater	2	Hokkaido (Japan)

Remark:

Our list of volcanic eruptions closely follows the database of eruptions of the Smithsonian's Global Volcanism Project (GVP), the internationally most recognized data source for volcanic eruptions, but also includes significant eruptive episodes or related volcano events. "Volcanic eruptions" are usually to be understood as sequences of individual eruptive episodes that can follow each other, or even overlap (if several vents are involved), and can last many years, decades or even longer. For example, the current activity of Stromboli volcano is understood as a single eruption that has been ongoing since 1934.

Sources: NOAA National Centers for Environmental Information (NCEI), Global Significant Volcanic Eruptions Database. doi:10.7289/V5TD9V7K | Global Volcanism Project / Smithsonian Institution

Hokkaido FAQ

+When was the last volcanic eruption in Hokkaido?

The last volcanic eruption in Hokkaido was from Akan volcano in 2008.

+When was the first documented volcanic eruption in Hokkaido?

The first historically documented eruption occurred around 1626 AD from Usu volcano.

+How often do volcanoes in Hokkaido erupt?

Since 1626 AD, Hokkaido has seen at least 107 historically documented eruptions. This means that a volcano erupts on average every 3.7 years.

+How active are the volcanoes in Hokkaido?

Hokkaido is volcanically relatively active: Since 1900, at least 6 volcanoes in Hokkaido have been active.Since 1900, Hokkaido has had 71 volcanic eruptions from 6 individual volcanoes. Volcanic eruptions have been recorded erupted during 56 years out of 126 as of now. This means, at least one volcano in Hokkaido has been in eruption in one in 2.3 years on average. The last volcano to erupt in Hokkaido was Akan volcano, which erupted in 2008, 17 years ago.

+When was the largest volcanic eruption in Hokkaido?

The largest eruption in Hokkaido in historic times was from Shikotsu volcano. It occurred in 1739. It ranks as a plinian eruption with a magnitude 5 on the VEI (Volcanic Explosivity Index) scale. Eruption of this size are often catastrophic on a regional scale.

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Akan Volcano (Japan) activity update Nov 21, 2025 - Unrest

Saturday, Nov 22, 2025 | 11 days ago · VN

The Japan Meteorological Agency (JMA) reported that unrest continued at Akan between 15 November 2025 (local) and 21 November 2025 (local). The alert level remained at "Level 2 - Restriction on proxim…

Akan Volcano Volcanic Ash Advisory: ERUPTED AT 20251025/0417Z FL050 EXTD NE OBS VA DTG: 25/0530Z

Saturday, Oct 25, 2025 | 1 month ago · VN

Satellite image of Akan volcano on 25 Oct 2025

Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:

FVFE01 at 05:55 UTC, 25/10/25 …Open article

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