Peru · Stratovolkan
Ubinas
- Tipe
- Stratovolkan
- Ketinggian
- 5608 m
- Letusan terakhir
- 2024
- Tipe
- Stratovolkan
- Negara
- Peru
- Wilayah
- Amerika Selatan / Central Andean Volcanic Arc
- Ketinggian
- 5608 m
- Koordinat
- -16.345, -70.897
- Letusan terakhir
- 2024
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
The truncated appearance of Ubinas, Perú's most active volcano, is a result of a 1.4-km-wide crater at the summit. It is the northernmost of three young volcanoes located along a regional structural lineament about 50 km behind the main volcanic front. The growth and destruction of Ubinas I was followed by construction of Ubinas II beginning in the mid-Pleistocene. The upper slopes of the andesitic-to-rhyolitic Ubinas II stratovolcano are composed primarily of andesitic and trachyandesitic lava flows and steepen to nearly 45°. The steep-walled, 150-m-deep summit crater contains an ash cone with a 500-m-wide funnel-shaped vent that is 200 m deep. Debris-avalanche deposits from the collapse of the SE flank about 3,700 years ago extend 10 km from the volcano. Widespread Plinian pumice-fall deposits include one from about 1,000 years ago. Holocene lava flows are visible on the flanks, but activity documented since the 16th century has consisted of intermittent minor-to-moderate explosive eruptions.
Ringkasan Wikipedia
Ringkasan InggrisUbinas is an active stratovolcano in the Moquegua Region of southern Peru, approximately 60 kilometres (37 mi) east of the city of Arequipa. Part of the Central Volcanic Zone of the Andes, it rises 5,672 metres (18,609 ft) above sea level. The volcano's summit is cut by a 1.4-kilometre-wide (0.87 mi) and 150-metre-deep (490 ft) caldera, which itself contains a smaller crater. Below the summit, Ubinas has the shape of an upwards-steepening cone with a prominent notch on the southern side. The gently sloping lower part of the volcano is also known as Ubinas I and the steeper upper part as Ubinas II; they represent different stages in the volcano's geological history.
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Riwayat letusan
28 tercatatGlosariumGaris waktu rinci
- 2024VEI 2Teramati2024-05-06 – 2024-06-11
- 2023VEI 3Teramati2023-06-22 – 2023-12-15
- 2019VEI 2Teramati2019-06-24 – 2019-09-12
- 2016VEI 2Teramati2016-09-13 – 2017-03-02Summit crater
- 2013VEI 2Teramati2013-09-01 – 2016-02-27Summit crater
- 2010VEI 1Teramati2010-07-18 – 2010-07-18
- 2006VEI 2Teramati2006-03-25 – 2009-07-04
- 1969VEI 2Teramati1969-06-16 – akhir tidak diketahui
- 1956VEI 2Teramati1956-05-16 – 1956-10-21
- 1951VEI 2Teramati1951-07-23 – akhir tidak diketahui
- 1937VEI 2Teramati1937-06-16 – akhir tidak diketahui
- 1907VEI 2Teramati1907-07-02 – akhir tidak diketahui
- 1906VEI 2Teramati1906-10-16 – akhir tidak diketahui
- 1869VEI 2Teramati1869-10-16 – akhir tidak diketahui
- 1867VEI 2Teramati1867-05-24 – 1867-05-28
- 1865VEI 2Teramati1865-07-02 – akhir tidak diketahui
- 1862VEI 2Teramati1862-07-02 – akhir tidak diketahui
- 1830VEI 2Teramati1830-07-02 – akhir tidak diketahui
- 1826VEI ?Metode tidak dinyatakan1826-07-02 – akhir tidak diketahui
- 1784VEI 2Teramati1784 – akhir tidak diketahui
- 1677VEI 3Teramati1677 – akhir tidak diketahui
- 1667VEI 3Teramati1667 – akhir tidak diketahui
- 1662VEI 3Teramati1662 – akhir tidak diketahui
- 1600VEI 2Metode tidak dinyatakan1600 – akhir tidak diketahui
- 1550 (±50 tahun)VEI 3Teramati1550 – akhir tidak diketahui
- 1082 (±82 tahun)VEI 5Perkiraan geologi1082 – akhir tidak diketahui
- 6850 SM (±150 tahun)VEI ?Perkiraan geologi6850 SM – akhir tidak diketahui
- 8560 SM (±300 tahun)VEI ?Perkiraan geologi8560 SM – akhir tidak diketahui
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