Jepang · Stratovolkan
Mount Kusatsu-Shirane
Kusatsu-Shiranesan
- Tipe
- Stratovolkan
- Ketinggian
- 2165 m
- Letusan terakhir
- 2018
- Tipe
- Stratovolkan
- Negara
- Jepang
- Wilayah
- Pasifik Barat Laut / Northeast Japan Volcanic Arc
- Ketinggian
- 2165 m
- Koordinat
- 36.618, 138.528
- Letusan terakhir
- 2018
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
The Kusatsu-Shiranesan complex, located immediately north of Asama volcano, consists of a series of overlapping pyroclastic cones and three crater lakes. The andesitic-to-dacitic volcano was formed in three eruptive stages beginning in the early to mid-Pleistocene. The Pleistocene Oshi pyroclastic flow produced extensive welded tuffs and non-welded pumice that covers much of the E, S, and SW flanks. The latest eruptive stage began about 14,000 years ago. Historical eruptions have consisted of phreatic explosions from the acidic crater lakes or their margins. Fumaroles and hot springs that dot the flanks have strongly acidified many rivers draining from the volcano. The crater was the site of active sulfur mining for many years during the 19th and 20th centuries.
Ringkasan Wikipedia
Ringkasan InggrisMount Kusatsu-Shirane is a 2,165 m (7,103 ft) active stratovolcano in Kusatsu, Gunma, Japan. 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.
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Riwayat letusan
31 tercatatGlosariumGaris waktu rinci
- 2018VEI 1Teramati2018-01-23 – 2018-01-23Motoshiranesan
- 1989VEI 1Metode tidak dinyatakan1989-01-06 – 1989-01-06NW part of Yu-gama
- 1983VEI 1Teramati1983-07-26 – 1983-12-21Yu-gama, Kara-gama
- 1982VEI 1Teramati1982-10-26 – 1982-12-29Kara-gama, Yu-gama
- 1976VEI 1Teramati1976-03-02 – 1976-03-02NE corner of Mizu-gama Crater
- 1958VEI 1Teramati1958-12-31 – akhir tidak diketahuiYu-gama
- 1942VEI 1Teramati1942-02-02 – akhir tidak diketahuiFissure east and south of Yu-gama
- 1941VEI 1Teramati1941-01-19 – 1941-01-19
- 1940VEI 1Teramati1940-04-07 – 1940-09-13
- 1939VEI 1Teramati1939-02-16 – 1939-08-28Yu-gama
- 1938VEI 1Teramati1938-07-17 – 1938-10-05Yu-gama
- 1937VEI 1Teramati1937-11-27 – 1938-02-16Yu-gama
- 1934VEI 2Teramati1934-07-02 – akhir tidak diketahui
- 1933VEI ?Metode tidak dinyatakan1933-07-02 – akhir tidak diketahui
- 1932VEI 3Teramati1932-10-01 – 1932-11-16NE part of Yu-gama, SE outer rim
- 1927VEI 2Teramati1927-12-29 – 1927-12-31N Yu-gama & S outer rim (in 1927, not 1928)
- 1925VEI 2Teramati1925-01-22 – 1925-01-30Northern part of Yu-gama
- 1905VEI 2Teramati1905-10-16 – 1905-10-16Yu-gama
- 1903VEI ?Metode tidak dinyatakan1903-07-02 – akhir tidak diketahui
- 1902VEI 1Teramati1902-07-15 – 1902-09-24North side of Yumi-ike
- 1900VEI 1Teramati1900-10-01 – 1900-10-01NE part of Yu-gama
- 1897VEI 2Teramati1897-07-08 – 1897-08-16NE part of Yu-gama
- 1882VEI 2Teramati1882-08-06 – 1882-08-16Yu-gama, NE end of Kara-gama
- 1805VEI 2Teramati1805-07-02 – akhir tidak diketahuiYu-gama
- 1470 (±150 tahun)VEI ?Perkiraan geologi1470 – akhir tidak diketahui
- 50VEI 2Perkiraan geologi50 – akhir tidak diketahuiYu-gama
- 550 SMVEI 3Perkiraan geologi550 SM – akhir tidak diketahuiYu-gama
- 1120 SM (±150 tahun)VEI 4Perkiraan geologi1120 SM – akhir tidak diketahuiMoto-Shirane
- 3750 SMVEI 2Perkiraan geologi3750 SM – akhir tidak diketahuiShirane
- 6270 SM (±200 tahun)VEI ?Perkiraan geologi6270 SM – akhir tidak diketahui
- 6550 SMVEI 3Perkiraan geologi6550 SM – akhir tidak diketahuiShirane
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