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San Miguel

Stratovolkan · El Salvador · 2130 m

Symmetrical San Miguel volcano towers 2000 m above a barren basaltic lava flow erupted from a SE-flank vent in 1819. The conical volcano is not the highest volcano in El Salvador, but is one of the most prominent, since it rises from near sea level on the Pacific coastal plain. San Miguel (also known as Chaparrastique) is one of the most active volcanoes of El Salvador, with more than two dozen eruptions recorded since the beginning of the Spanish era.
Symmetrical San Miguel volcano towers 2000 m above a barren basaltic lava flow erupted from a SE-flank vent in 1819. The conical volcano is not the highest volcano in El Salvador, but is one of the most prominent, since it rises from near sea level on the Pacific coastal plain. San Miguel (also known as Chaparrastique) is one of the most active volcanoes of El Salvador, with more than two dozen eruptions recorded since the beginning of the Spanish era. · Foto: Photo by Carlos Pullinger, 1996 (Servicio Nacional de Estudios Territoriales, El Salvador). · Wikimedia Commons
Tipe
Stratovolkan
Negara
El Salvador
Wilayah
Middle America-Caribbean Volcanic Regions / Central America Volcanic Arc
Ketinggian
2130 m
Koordinat
13.434, -88.269
Letusan terakhir
2023
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

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.

Ringkasan Wikipedia

Ringkasan Inggris

San 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.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1510~1561 · 1 letusan · VEI maks. ?1664~1715 · 1 letusan · VEI maks. 21715~1766 · 1 letusan · VEI maks. 21766~1817 · 4 letusan · VEI maks. 21817~1868 · 7 letusan · VEI maks. 21868~1920 · 4 letusan · VEI maks. 21920~1971 · 13 letusan · VEI maks. 21971~2022 · 14 letusan · VEI maks. 315101612176618681971

Garis waktu rinci

  1. 2022VEI 2Teramati
    2022-11-15 – 2023-05-27
  2. 2020VEI 1Teramati
    2020-02-22 – 2020-02-22
  3. 2018VEI 1Teramati
    2018-01-14 – 2018-03-04
    Summit crater
  4. 2017VEI 1Teramati
    2017-01-07 – 2017-01-07
    Summit crater
  5. 2016VEI 1Teramati
    2016-01-12 – 2016-01-18
    Summit crater
  6. 2016VEI 1Teramati
    2016-06-18 – 2016-06-18
    Summit crater
  7. 2015VEI 1Teramati
    2015-08-13 – 2015-08-13
    Summit crater
  8. 2015VEI 1Teramati
    2015-01-26 – 2015-04-11
    Summit crater
  9. 2013VEI 3Teramati
    2013-12-29 – 2014-07-28
    Summit Crater
  10. 2002VEI 1Teramati
    2002-01-16 – 2002-01-16
  11. 1997VEI 1Teramati
    1997-12-31 – Berlangsung
  12. 1995VEI 1Teramati
    1995-01-12 – 1995-04-19
  13. 1985VEI 1Teramati
    1985-11-16 – 1986-02-16
  14. 1976VEI 1Teramati
    1976-12-02 – 1977-03-01
  15. 1970VEI 1Teramati
    1970-03-30 – 1970-04-05
  16. 1967VEI 2Teramati
    1967-01-05 – Berlangsung
  17. 1966VEI 2Teramati
    1966-02-22 – Berlangsung
  18. 1966VEI 2Teramati
    1966-07-16 – Berlangsung
  19. 1965VEI 2Teramati
    1965-06-14 – Berlangsung
    Summit crater
  20. 1964VEI 2Teramati
    1964-10-23 – 1964-11-16
  21. 1954VEI 2Teramati
    1954-10-21 – 1954-10-21
  22. 1939VEI 2Teramati
    1939-05 – 1939-07
  23. 1936VEI 2Perkiraan geologi
    1936 – Berlangsung
  24. 1931VEI 2Teramati
    1931-03 – 1931-06
  25. 1930VEI 2Teramati
    1930-01-26 – Berlangsung
  26. 1929VEI 2Teramati
    1929-08 – Berlangsung
  27. 1920VEI 2Teramati
    1920-08-14 – 1925
  28. 1919VEI 2Teramati
    1919-12-10 – 1920-01
  29. 1890VEI 2Teramati
    1890 – 1891
  30. 1884VEI 2Teramati
    1884-01-25 – 1884-01-28
    NE side of main crater
  31. 1882VEI 2Teramati
    1882-12-05 – Berlangsung
  32. 1867VEI 2Teramati
    1867-12-14 – 1868-02-16
    WSW flank (1000 m)
  33. 1862VEI 2Teramati
    1862-01 – Berlangsung
  34. 1857VEI 2Teramati
    1857-11 – Berlangsung
  35. 1855VEI 2Teramati
    1855-12 – Berlangsung
    SSE flank (800 m)
  36. 1854VEI 2Perkiraan geologi
    1854 – Berlangsung
  37. 1844VEI 2Teramati
    1844-07-25 – 1848
    NNW (1120 m) and upper east flanks
  38. 1819VEI 2Teramati
    1819-07-18 – Berlangsung
    SSE flank (400 m; near Los Perolitos)
  39. 1811VEI 2Perkiraan geologi
    1811 – Berlangsung
  40. 1798VEI 2Perkiraan geologi
    1798 – Berlangsung
  41. 1787VEI 2Teramati
    1787-09-21 – 1787-09-23
    Summit, north and SE flanks
  42. 1769VEI 2Teramati
    1769 – Berlangsung
    East flank ?
  43. 1762VEI 2Teramati
    1762 – Berlangsung
    NE flank (400 m)
  44. 1699VEI 2Teramati
    1699 – Berlangsung
    SE flank (400 m)
  45. 1510 (±5 tahun)VEI ?Teramati
    1510 – Berlangsung

Tautan eksternal

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