El Salvador · Stratovulcano
San Miguel
- Tipo
- Stratovulcano
- Altitudine
- 2130 m
- Ultima eruzione
- 2023
_Volcano_El_Salvador.JPG?width=800)
- Tipo
- Stratovulcano
- Paese
- El Salvador
- Regione
- America Centrale e Caraibi / Central America Volcanic Arc
- Altitudine
- 2130 m
- Coordinate
- 13.434, -88.269
- Ultima eruzione
- 2023
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
The symmetrical cone of San Miguel, one of the most active volcanoes in El Salvador, rises from near sea level to form one of the country's most prominent landmarks. A broad, deep, crater complex that has been frequently modified by eruptions recorded since the early 16th century caps the truncated unvegetated summit, also known locally as Chaparrastique. Flanks eruptions of the basaltic-andesitic volcano have produced many lava flows, including several during the 17th-19th centuries that extended to the N, NE, and SE. The SE-flank flows are the largest and form broad, sparsely vegetated lava fields crossed by highways and a railroad skirting the base of the volcano. Flank vent locations have migrated higher on the edifice during historical time, and the most recent activity has consisted of minor ash eruptions from the summit crater.
Sintesi da Wikipedia
Riassunto in ingleseSan Miguel is a stratovolcano in central-eastern El Salvador, approximately 15 kilometres (9.3 mi) southwest of the city of San Miguel. On January 16, 2002, a minor eruption of steam, gas, and ash occurred from the summit crater, lasting 3 hours but causing no real damage to life or property. Carbon dioxide emissions had been monitored since November 2001, and their steady increase continued to build up until the eruption.
Wikipedia · CC BY-SA · Leggi l'articolo completo →
Storia delle eruzioni
45 registrateGlossarioCronologia dettagliata
- 2022VEI 2Osservata2022-11-15 – 2023-05-27
- 2020VEI 1Osservata2020-02-22 – 2020-02-22
- 2018VEI 1Osservata2018-01-14 – 2018-03-04Summit crater
- 2017VEI 1Osservata2017-01-07 – 2017-01-07Summit crater
- 2016VEI 1Osservata2016-01-12 – 2016-01-18Summit crater
- 2016VEI 1Osservata2016-06-18 – 2016-06-18Summit crater
- 2015VEI 1Osservata2015-08-13 – 2015-08-13Summit crater
- 2015VEI 1Osservata2015-01-26 – 2015-04-11Summit crater
- 2013VEI 3Osservata2013-12-29 – 2014-07-28Summit Crater
- 2002VEI 1Osservata2002-01-16 – 2002-01-16
- 1997VEI 1Osservata1997-12-31 – fine sconosciuta
- 1995VEI 1Osservata1995-01-12 – 1995-04-19
- 1985VEI 1Osservata1985-11-16 – 1986-02-16
- 1976VEI 1Osservata1976-12-02 – 1977-03-01
- 1970VEI 1Osservata1970-03-30 – 1970-04-05
- 1967VEI 2Osservata1967-01-05 – fine sconosciuta
- 1966VEI 2Osservata1966-02-22 – fine sconosciuta
- 1966VEI 2Osservata1966-07-16 – fine sconosciuta
- 1965VEI 2Osservata1965-06-14 – fine sconosciutaSummit crater
- 1964VEI 2Osservata1964-10-23 – 1964-11-16
- 1954VEI 2Osservata1954-10-21 – 1954-10-21
- 1939VEI 2Osservata1939-05-16 – 1939-07-16
- 1936VEI 2Metodo non indicato1936-07-02 – fine sconosciuta
- 1931VEI 2Osservata1931-03-16 – 1931-06-16
- 1930VEI 2Osservata1930-01-26 – fine sconosciuta
- 1929VEI 2Osservata1929-08-16 – fine sconosciuta
- 1920VEI 2Osservata1920-08-14 – 1925-07-02
- 1919VEI 2Osservata1919-12-10 – 1920-01-16
- 1890VEI 2Osservata1890-07-02 – 1891-07-02
- 1884VEI 2Osservata1884-01-25 – 1884-01-28NE side of main crater
- 1882VEI 2Osservata1882-12-05 – fine sconosciuta
- 1867VEI 2Osservata1867-12-14 – 1868-02-16WSW flank (1000 m)
- 1862VEI 2Osservata1862-01-16 – fine sconosciuta
- 1857VEI 2Osservata1857-11-16 – fine sconosciuta
- 1855VEI 2Osservata1855-12-16 – fine sconosciutaSSE flank (800 m)
- 1854VEI 2Metodo non indicato1854-07-02 – fine sconosciuta
- 1844VEI 2Osservata1844-07-25 – 1848-07-02NNW (1120 m) and upper east flanks
- 1819VEI 2Osservata1819-07-18 – fine sconosciutaSSE flank (400 m; near Los Perolitos)
- 1811VEI 2Metodo non indicato1811-07-02 – fine sconosciuta
- 1798VEI 2Metodo non indicato1798 – fine sconosciuta
- 1787VEI 2Osservata1787-09-21 – 1787-09-23Summit, north and SE flanks
- 1769VEI 2Osservata1769 – fine sconosciutaEast flank ?
- 1762VEI 2Osservata1762 – fine sconosciutaNE flank (400 m)
- 1699VEI 2Osservata1699 – fine sconosciutaSE flank (400 m)
- 1510 (±5 anni)VEI ?Osservata1510 – fine sconosciuta
Vulcani nelle vicinanze
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.