Cile · Stratovolkan
Michinmahuida
- Tipe
- Stratovolkan
- Ketinggian
- 2452 m
- Letusan terakhir
- 1835
- Tipe
- Stratovolkan
- Negara
- Cile
- Wilayah
- Amerika Selatan / Southern Andean Volcanic Arc
- Ketinggian
- 2452 m
- Koordinat
- -42.799, -72.445
- Letusan terakhir
- 1835
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
The glacier-covered basaltic-to-andesitic Volcán Michinmahuida, located west of Lago Reñihue, has a saddle-shaped summit with an elongated 3-km-wide caldera. The massive edifice is elongated in a NE-SW direction, and a youthful eruptive center is located on the ENE side of the complex. A major explosive eruption at the beginning of the Holocene produced the Amarillo Ignimbrite that may have created the now ice-filled summit caldera, and Holocene tephra deposits from summit and flank vents have been identified. An eruption was reported in 1742, and Charles Darwin observed activity in 1834. The latest known eruption, February-March 1835, produced a lava flow from a flank crater and lahars that reached the coast at Punta Chana.
Ringkasan Wikipedia
Ringkasan InggrisMichinmahuida is a glaciated stratovolcano located in Los Lagos Region of Chile. It lies about 15 km east of Chaitén volcano, and was extensively covered in ash during the 2008 eruption of Chaitén. The stratovolcano lies above the regional Liquine-Ofqui Fault zone, and the ice-covered massif towers over the south portion of Pumalín Park. It has a summit elevation of 2,450 meters above sea level.
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Riwayat letusan
10 tercatatGlosariumGaris waktu rinci
- 1915 (±25 tahun)VEI 2Perkiraan geologi1915-07-02 – akhir tidak diketahui
- 1835VEI 0Teramati1835-02-20 – 1835-03-15
- 1834VEI 2Teramati1834-11-25 – akhir tidak diketahui
- 1775 (±40 tahun)VEI 2Perkiraan geologi1775 – akhir tidak diketahui
- 1742VEI 2Teramati1742 – akhir tidak diketahui
- 1650 (±50 tahun)VEI ?Metode tidak dinyatakan1650 – akhir tidak diketahui
- 1550 (±100 tahun)VEI 4Perkiraan geologi1550 – akhir tidak diketahui
- 700 (±100 tahun)VEI ?Perkiraan geologi700 – akhir tidak diketahui
- 5500 SM (±150 tahun)VEI 5Perkiraan geologi5500 SM – akhir tidak diketahui
- 8400 SM (±150 tahun)VEI 6Perkiraan geologi8400 SM – akhir tidak diketahui
Gunung api terdekat
Tautan eksternal
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.