Mount Kusatsu-Shirane

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Mount Kusatsu-Shirane
Viewed from the SE.
Highest point
Elevation2,171 m (7,123 ft)
Coordinates36°38′38″N 138°31′40″E / 36.6438°N 138.5279°E / 36.6438; 138.5279
Native name草津白根山
Mount Kusatsu-Shirane is located in Japan
Mount Kusatsu-Shirane
Mount Kusatsu-Shirane
Parent range=
Mountain typeStratovolcanoes
Last eruptionJanuary 23, 2018[1]

Mount Kusatsu-Shirane (草津白根山, Kusatsu Shirane-san) is a 2160-meter active stratovolcano in Kusatsu, Gunma, Japan.[2] It is called Kusatsu Shirane to differentiate it from the Mount Nikkō-Shirane on the other side of Gunma Prefecture. The summit of Kusatsu-Shirane volcano, located immediately north of Asama volcano, consists of a series of overlapping pyroclastic cones and three crater lakes. The largest of these is Yu-gama, an acidic emerald green lake with rafts of yellow sulfur sometimes seen floating on its surface.[3][4]

On January 23, 2018, a minor phreatic eruption of the volcano occurred.[5] One person was killed, and others were injured in an avalanche triggered by the eruption.[6] The next day, new activity forced police to suspend search operations.[7] One month after the eruption, it was announced by prefectural officials that only the summit of the volcano was off limits to the public.[8]

See also[edit]


  1. ^ 草津白根山が噴火 警戒レベル3に 気象庁. NHK News Web (in Japanese). NHK. Retrieved 23 January 2018.
  2. ^ "Kusatsu-Shirane". OSU Department of Geosciences. Oregon State University. Retrieved 23 January 2018.
  3. ^ "Mt. Kusatsu-Shiranesan". Gunma Tourist Guide. Bureau of Tourism, GUNMA Prefectural Government. Retrieved 24 January 2018.
  4. ^ "Kusatsu-Shiranesan". Smithsonian Institution, Global Volcanism Program. Smithsonian Institution. Retrieved 24 January 2018.
  5. ^ "Mt. Kusatsu-Shirane saw repeated eruptions in the past". The Mainichi. The Mainichi Newspapers. 24 January 2018. Retrieved 24 January 2018.
  6. ^ McCurry, Justin. "Japan: fatal avalanche engulfs skiers after volcano erupts". The Guardian. Guardian Media Group. Retrieved 23 January 2018.
  7. ^ "Volcanic tremors halt search ops after eruption". Japan Today. AFP. 24 January 2018. Retrieved 24 January 2018.
  8. ^ "One month since eruption of Mt. Kusatsu-Shirane". NHK World. NHK. 23 February 2018. Retrieved 23 February 2018.

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