Jepang · Stratovolkan
Kuju Mountains
Kujusan
- Tipe
- Stratovolkan
- Ketinggian
- 1791 m
- Letusan terakhir
- 1996
- Tipe
- Stratovolkan
- Negara
- Jepang
- Wilayah
- Pasifik Barat / Nankai Volcanic Arc
- Ketinggian
- 1791 m
- Koordinat
- 33.086, 131.249
- Letusan terakhir
- 1996
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
Kujusan is a complex of stratovolcanoes and lava domes lying NE of Aso caldera in north-central Kyushu. The group consists of 16 andesitic lava domes, five andesitic stratovolcanoes, and one basaltic cone. Activity dates back about 150,000 years. Six major andesitic-to-dacitic tephra deposits, many associated with the growth of lava domes, have been recorded during the Holocene. Eruptive activity has migrated systematically eastward during the past 5000 years. The latest magmatic activity occurred about 1600 years ago, when Kurodake lava dome at the E end of the complex was formed. The first reports of historical eruptions were in the 17th and 18th centuries, when phreatic or hydrothermal activity occurred. There are also many hot springs and hydrothermal fields. A fumarole on Hosho lava dome was the site of a sulfur mine for at least 500 years. Two geothermal power plants are in operation at Kuju.
Ringkasan Wikipedia
Ringkasan InggrisMount Kujū , located on the border of Kokonoe and Taketa in Ōita Prefecture, Japan, is a stratovolcano in Kyushu Island, Japan, with a summit elevation of 1,791 metres (5,876 ft). It is one of the 100 Famous Japanese Mountains. It is part of the Aso-Kujū National Park.
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Riwayat letusan
14 tercatatGlosariumGaris waktu rinci
- 1995VEI 1Teramati1995-10-11 – 1996-03-24Hosho lava dome (east flank)
- 1738VEI 2Metode tidak dinyatakan1738-08-13 – akhir tidak diketahui
- 1675VEI 2Teramati1675-06 – akhir tidak diketahui
- 1662VEI 2Teramati1662-01-26 – akhir tidak diketahui
- 370 (±40 tahun)VEI 3Perkiraan geologi370 – akhir tidak diketahuiKuro-dake
- 100 SM (±300 tahun)VEI 4Perkiraan geologi100 SM – akhir tidak diketahuiKomekubo crater
- 990 SM (±940 tahun)VEI 4Perkiraan geologi990 SM – akhir tidak diketahuiKomekubo crater
- 1720 SM (±300 tahun)VEI ?Perkiraan geologi1720 SM – akhir tidak diketahuiTaisen-Minami
- 2440 SM (±300 tahun)VEI 4Perkiraan geologi2440 SM – akhir tidak diketahuiDanbaru
- 3110 SM (±500 tahun)VEI ?Perkiraan geologi3110 SM – akhir tidak diketahuiIwaigo-dake, Ogigahana, Hizengajo
- 3780 SM (±500 tahun)VEI 4Perkiraan geologi3780 SM – akhir tidak diketahuiTaisen-Hokubu lava dome
- 4490 SM (±500 tahun)VEI ?Perkiraan geologi4490 SM – akhir tidak diketahuiTachi-san, Gakurokuji
- 7180 SM (±2640 tahun)VEI ?Perkiraan geologi7180 SM – akhir tidak diketahuiSensui-zan
- 9160 SM (±1190 tahun)VEI 4Perkiraan geologi9160 SM – akhir tidak diketahui
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