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Gunung Pacaya

Pacaya

Gunung api kompleks · Guatemala · 2569 m

The Volcán de Pacaya massif rises above the capital city of Guatemala, located only 30 km to the north. The rounded, forested lava dome of Cerro Grande forms the high point at the left. The next highest peak to the right is the historically active vent of Pacaya, with the right-hand summit being the MacKenney cone, which has been active since 1965. Eruptions of Pacaya are often visible from Guatemala City.
The Volcán de Pacaya massif rises above the capital city of Guatemala, located only 30 km to the north. The rounded, forested lava dome of Cerro Grande forms the high point at the left. The next highest peak to the right is the historically active vent of Pacaya, with the right-hand summit being the MacKenney cone, which has been active since 1965. Eruptions of Pacaya are often visible from Guatemala City. · Foto: Photo by Bill Rose, 1989 (Michigan Technological University). · Wikimedia Commons
Tipe
Gunung api kompleks
Negara
Guatemala
Wilayah
Middle America-Caribbean Volcanic Regions / Central America Volcanic Arc
Ketinggian
2569 m
Koordinat
14.382, -90.601
Letusan terakhir
2021
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

Eruptions from Pacaya are frequently visible from Guatemala City, the nation's capital. This complex basaltic volcano was constructed just outside the southern topographic rim of the 14 x 16 km Pleistocene Amatitlán caldera. A cluster of dacitic lava domes occupies the southern caldera floor. The post-caldera Pacaya massif includes the older Pacaya Viejo and Cerro Grande stratovolcanoes and the currently active Mackenney stratovolcano. Collapse of Pacaya Viejo between 600 and 1,500 years ago produced a debris-avalanche deposit that extends 25 km onto the Pacific coastal plain and left an arcuate scarp inside which the modern Pacaya volcano (Mackenney cone) grew. The NW-flank Cerro Chino crater was last active in the 19th century. During the past several decades, activity has consisted of frequent Strombolian eruptions with intermittent lava flow extrusion that has partially filled in the caldera moat and covered the flanks of Mackenney cone, punctuated by occasional larger explosive eruptions that partially destroy the summit.

Ringkasan Wikipedia

Pacaya adalah gunung berapi gabungan aktif di Guatemala, yang pertama kali meletus sekitar 23.000 tahun yang lalu dan telah meletus setidaknya 23 kali sejak penaklukan Guatemala oleh Spanyol. Ketinggiannya mencapai 2.552 meter. Setelah tidak aktif selama lebih dari 70 tahun, gunung ini mulai meletus hebat pada tahun 1961 dan terus meletus sejak saat itu. Sebagian besar aktivitasnya bersifat Stromboli, tetapi terkadang letusan Plinius juga terjadi, terkadang menghujani area Departemen di dekatnya dengan abu.

Wikipedia · CC BY-SA · Baca artikel lengkap →

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
400~562 · 1 letusan · VEI maks. 2723~885 · 1 letusan · VEI maks. 31046~1208 · 1 letusan · VEI maks. 31208~1369 · 1 letusan · VEI maks. 31531~1692 · 12 letusan · VEI maks. 31692~1854 · 8 letusan · VEI maks. 31854~2015 · 12 letusan · VEI maks. 3400723120815311854

Garis waktu rinci

  1. 2015VEI 1Teramati
    2015-06-07 – 2021-08-13
    MacKenney Crater
  2. 2014VEI 1Teramati
    2014-08-25 – 2015-02-17
    MacKenney Crater
  3. 2013VEI 2Teramati
    2013-03-05 – 2014-04-10
    MacKenney Crater
  4. 2006VEI 3Teramati
    2006-03-09 – 2010-10-26
    MacKenney Cone
  5. 2004VEI 3Teramati
    2004-07-19 – 2005-09-11
    MacKenney Cone and lower S flank
  6. 2002VEI 1Teramati
    2002-05-30 – 2002-06-17
    MacKenney Crater
  7. 2001VEI 1Teramati
    2001-10-31 – 2001-10-31
    MacKenney Crater
  8. 2000VEI 1Teramati
    2000-08-16 – 2001-07-05
    MacKenney Crater
  9. 1990VEI 3Teramati
    1990-01-04 – 2000-03-01
    MacKenney Crater and flank vents
  10. 1965VEI 3Teramati
    1965-07-04 – 1989-03-10
    MacKenney Crater and flank vents
  11. 1961VEI 2Teramati
    1961-03-11 – 1961-04-15
    Cachajinas vent (South flank, 1860 m)
  12. 1885VEI 2Teramati
    1885-12 – Berlangsung
  13. 1846VEI 2Teramati
    1846-02 – Berlangsung
    Cerro Chino
  14. 1830VEI ?Perkiraan geologi
    1830 – Berlangsung
  15. 1805VEI 2Teramati
    1805 – Berlangsung
  16. 1775VEI 3Teramati
    1775-07-01 – 1775-07-23
    Cerro Chino (SW flank and summit)
  17. 1760VEI ?Perkiraan geologi
    1760 – Berlangsung
  18. 1717VEI ?Perkiraan geologi
    1717 – Berlangsung
  19. 1699VEI 2Teramati
    1699-06-29 – Berlangsung
  20. 1693VEI 2Teramati
    1693 – Berlangsung
  21. 1690VEI 2Teramati
    1690 – Berlangsung
  22. 1687VEI 2Teramati
    1687-03-26 – 1687-03-27
  23. 1678VEI 2Teramati
    1678-08 – Berlangsung
  24. 1677VEI ?Perkiraan geologi
    1677-07 – Berlangsung
  25. 1674VEI 2Teramati
    1674-07 – Berlangsung
  26. 1671VEI 2Teramati
    1671-08 – Berlangsung
  27. 1668VEI 2Teramati
    1668-08 – 1669-06-29
  28. 1664VEI 3Teramati
    1664 – Berlangsung
  29. 1655VEI 2Teramati
    1655-07 – Berlangsung
  30. 1651VEI 2Teramati
    1651-02-18 – 1651-04-13
  31. 1623VEI 3Teramati
    1623 – Berlangsung
  32. 1565VEI 3Teramati
    1565-08 – Berlangsung
    Cerro Chino
  33. 1360 (±75 tahun)VEI 3Perkiraan geologi
    1360 – Berlangsung
    Cerro Chino
  34. 1160 (±75 tahun)VEI 3Perkiraan geologi
    1160 – Berlangsung
    MacKenney Crater
  35. 880 (±500 tahun)VEI 3Perkiraan geologi
    880 – Berlangsung
  36. 400 (±50 tahun)VEI 2Perkiraan geologi
    400 – Berlangsung

Tautan eksternal

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