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Poás Volcano

Poas

Stratovolkan · Costa Rica · 2697 m

Poás is a broad volcano with a summit area containing three craters and is one of the most active volcanoes of Costa Rica. This photo from the east shows a plume rising from the active summit crater, which has been the site of frequent phreatic and phreatomagmatic eruptions since 1828, and the lake filled Botos crater to the left.
Poás is a broad volcano with a summit area containing three craters and is one of the most active volcanoes of Costa Rica. This photo from the east shows a plume rising from the active summit crater, which has been the site of frequent phreatic and phreatomagmatic eruptions since 1828, and the lake filled Botos crater to the left. · Foto: Photo by Mike Carr (Rutgers University). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Costa Rica
Wilayah
Middle America-Caribbean Volcanic Regions / Central America Volcanic Arc
Ketinggian
2697 m
Koordinat
10.200, -84.233
Letusan terakhir
2026
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

The broad vegetated edifice of Poás, one of the most active volcanoes of Costa Rica, contains three craters along a N-S line. The frequently visited multi-hued summit crater lakes of the basaltic-to-dacitic volcano are easily accessible by vehicle from the nearby capital city of San José. A N-S-trending fissure cutting the complex stratovolcano extends to the lower N flank, where it has produced the Congo stratovolcano and several lake-filled maars. The southernmost of the two summit crater lakes, Botos, last erupted about 7,500 years ago. The more prominent geothermally heated northern lake, Laguna Caliente, is one of the world's most acidic natural lakes, with a pH of near zero. It has been the site of frequent phreatic and phreatomagmatic eruptions since an eruption was reported in 1828. Eruptions often include geyser-like ejections of crater-lake water.

Ringkasan Wikipedia

Ringkasan Inggris

The Poás Volcano, is an active 2,697-metre (8,848 ft) stratovolcano in central Costa Rica located within Poas Volcano National Park. It has erupted 40 times since 1828, with a strong eruption in April 2017—causing the evacuation of visitors and residents. The volcano and surrounding park were closed for nearly 17 months, with a 2.5 kilometer safety perimeter established around the erupting crater. On September 1, 2018, the park was reopened to the public only with limited access to the crater observation area. They have started to require a reservation on the National Park Website before visitation. Adjacent trails to Lake Botos, and the museum at the visitor center remained closed. The volcano erupted briefly twice in September 2019.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
7920 BCE~7588 BCE · 2 letusan · VEI maks. ?5599 BCE~5268 BCE · 1 letusan · VEI maks. ?4273 BCE~3942 BCE · 1 letusan · VEI maks. ?958 BCE~627 BCE · 1 letusan · VEI maks. ?36~368 · 1 letusan · VEI maks. ?1031~1362 · 1 letusan · VEI maks. ?1694~2025 · 58 letusan · VEI maks. 27920 BCE5599 BCE2947 BCE627 BCE1694

Garis waktu rinci

  1. 2025VEI ?Teramati
    2025-01-05 – 2026-03-16
  2. 2023VEI 1Teramati
    2023-08-02 – 2023-08-11
  3. 2023VEI 1Teramati
    2023-12-01 – 2024-05-05
  4. 2022VEI 1Teramati
    2022-04-06 – 2022-04-06
    Crater lake - Fumarola Naranja
  5. 2019VEI 2Teramati
    2019-02-07 – 2019-09-30
    Caliente Summit Crater
  6. 2018VEI ?Teramati
    2018-05-25 – 2018-05-25
    Summit crater
  7. 2017VEI 1Teramati
    2017-04-12 – 2017-11-06
    Laguna Caliente Crater
  8. 2016VEI 1Teramati
    2016-06-05 – 2016-08-16
    Lake in summit crater
  9. 2009VEI 1Teramati
    2009-01-12 – 2009-03-21
  10. 2009VEI 1Teramati
    2009-11-16 – 2014-10-13
  11. 2008VEI 1Teramati
    2008-01-13 – 2008-01-13
  12. 2006VEI 1Teramati
    2006-03-24 – 2006-03-24
  13. 2006VEI 1Teramati
    2006-09-25 – 2006-12-16
  14. 1996VEI 1Teramati
    1996-04-08 – 1996-04-08
  15. 1994VEI 2Teramati
    1994-03-16 – 1994-10-16
  16. 1992VEI 1Teramati
    1992-02-16 – 1992-03-16
  17. 1992VEI 0Teramati
    1992-10-16 – 1993-09-16
  18. 1991VEI 1Teramati
    1991-03-06 – 1991-09-16
  19. 1987VEI 2Teramati
    1987-06-16 – 1990-06-16
  20. 1981VEI 1Teramati
    1981-03-16 – 1981-05-16
  21. 1980VEI 1Teramati
    1980-09-12 – 1980-09-12
  22. 1980VEI 1Teramati
    1980-12-26 – 1980-12-26
  23. 1979VEI 1Teramati
    1979-09-08 – 1980-01-16
  24. 1978VEI 1Teramati
    1978-09-22 – 1978-12-16
  25. 1977VEI 1Teramati
    1977-05-16 – 1977-07-16
  26. 1977VEI 2Teramati
    1977-12-18 – 1978-06-15
  27. 1976VEI 2Teramati
    1976-06-21 – 1976-11-16
  28. 1974VEI 2Teramati
    1974-09-11 – 1975-02-16
  29. 1972VEI 2Teramati
    1972-02-09 – 1973-09-08
  30. 1970VEI 1Teramati
    1970-07-16 – Berlangsung
  31. 1969VEI 2Teramati
    1969-05-03 – 1969-06-03
  32. 1968VEI 1Teramati
    1968-07-02 – Berlangsung
  33. 1967VEI 1Teramati
    1967-01-01 – Berlangsung
  34. 1964VEI 2Teramati
    1964-12-25 – 1965-03-16
  35. 1963VEI 2Teramati
    1963-05-23 – 1963-07-02
  36. 1958VEI 2Teramati
    1958-07-02 – 1961-07-03
  37. 1952VEI 2Teramati
    1952-03-23 – 1957-12-25
  38. 1948VEI 1Teramati
    1948 – 1951-07-02
  39. 1946VEI 1Teramati
    1946-11-04 – Berlangsung
  40. 1941VEI 1Teramati
    1941 – 1946
  41. 1932VEI 1Teramati
    1932 – 1934
  42. 1929VEI 1Teramati
    1929 – Berlangsung
  43. 1925VEI 1Teramati
    1925 – Berlangsung
  44. 1916VEI 2Teramati
    1916 – Berlangsung
  45. 1914VEI 2Teramati
    1914-05-30 – Berlangsung
  46. 1914VEI 2Teramati
    1914-10-08 – 1915-05-15
  47. 1910VEI 2Teramati
    1910-01-25 – 1910-02
  48. 1910VEI 1Teramati
    1910-09-12 – 1910-10-14
  49. 1898VEI 1Teramati
    1898-12-29 – 1907-12-31
  50. 1895VEI 1Teramati
    1895 – Berlangsung
  51. 1888VEI 1Teramati
    1888-01 – 1891
  52. 1880VEI 1Teramati
    1880 – Berlangsung
  53. 1879VEI 1Perkiraan geologi
    1879 – Berlangsung
  54. 1860VEI 1Teramati
    1860 – Berlangsung
  55. 1838VEI 2Perkiraan geologi
    1838 – Berlangsung
  56. 1834VEI 2Teramati
    1834 – Berlangsung
  57. 1828VEI 1Teramati
    1828 – Berlangsung
  58. 1747VEI 2Teramati
    1747 – Berlangsung
  59. 1280VEI ?Perkiraan geologi
    1280 – Berlangsung
    North flank (Bosque Alegre)
  60. 210VEI ?Perkiraan geologi
    210 – Berlangsung
    North flank (Bosque Alegre)
  61. 760 SM (±200 tahun)VEI ?Perkiraan geologi
    BCE 760 – Berlangsung
    North flank (Bosque Alegre)
  62. 3950 SMVEI ?Perkiraan geologi
    BCE 3950 – Berlangsung
    North flank (Cerro Congo)
  63. 5590 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 5590 – Berlangsung
    Botos Cone
  64. 7620 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 7620 – Berlangsung
  65. 7920 SM (±75 tahun)VEI ?Perkiraan geologi
    BCE 7920 – Berlangsung

Tautan eksternal

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