Perù · Stratovulcano
Ubinas
- Tipo
- Stratovulcano
- Altitudine
- 5608 m
- Ultima eruzione
- 2024
- Tipo
- Stratovulcano
- Paese
- Perù
- Regione
- Sud America / Central Andean Volcanic Arc
- Altitudine
- 5608 m
- Coordinate
- -16.345, -70.897
- Ultima eruzione
- 2024
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
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.
Sintesi da Wikipedia
Riassunto in ingleseUbinas 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.
Wikipedia · CC BY-SA · Leggi l'articolo completo →
Storia delle eruzioni
28 registrateGlossarioCronologia dettagliata
- 2024VEI 2Osservata2024-05-06 – 2024-06-11
- 2023VEI 3Osservata2023-06-22 – 2023-12-15
- 2019VEI 2Osservata2019-06-24 – 2019-09-12
- 2016VEI 2Osservata2016-09-13 – 2017-03-02Summit crater
- 2013VEI 2Osservata2013-09-01 – 2016-02-27Summit crater
- 2010VEI 1Osservata2010-07-18 – 2010-07-18
- 2006VEI 2Osservata2006-03-25 – 2009-07-04
- 1969VEI 2Osservata1969-06-16 – fine sconosciuta
- 1956VEI 2Osservata1956-05-16 – 1956-10-21
- 1951VEI 2Osservata1951-07-23 – fine sconosciuta
- 1937VEI 2Osservata1937-06-16 – fine sconosciuta
- 1907VEI 2Osservata1907-07-02 – fine sconosciuta
- 1906VEI 2Osservata1906-10-16 – fine sconosciuta
- 1869VEI 2Osservata1869-10-16 – fine sconosciuta
- 1867VEI 2Osservata1867-05-24 – 1867-05-28
- 1865VEI 2Osservata1865-07-02 – fine sconosciuta
- 1862VEI 2Osservata1862-07-02 – fine sconosciuta
- 1830VEI 2Osservata1830-07-02 – fine sconosciuta
- 1826VEI ?Metodo non indicato1826-07-02 – fine sconosciuta
- 1784VEI 2Osservata1784 – fine sconosciuta
- 1677VEI 3Osservata1677 – fine sconosciuta
- 1667VEI 3Osservata1667 – fine sconosciuta
- 1662VEI 3Osservata1662 – fine sconosciuta
- 1600VEI 2Metodo non indicato1600 – fine sconosciuta
- 1550 (±50 anni)VEI 3Osservata1550 – fine sconosciuta
- 1082 (±82 anni)VEI 5Stima geologica1082 – fine sconosciuta
- 6850 a.C. (±150 anni)VEI ?Stima geologica6850 a.C. – fine sconosciuta
- 8560 a.C. (±300 anni)VEI ?Stima geologica8560 a.C. – fine sconosciuta
Vulcani nelle vicinanze
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.