Lewati ke konten utama
← Kembali ke peta
⇄ Bandingkan

Gunung Pavlof

Pavlof

Stratovolkan · United States · 2493 m

Pavlof, rising above low plains to its NW, is one of Alaska's most active volcanoes. It is part of a NNE-SSW-trending line of volcanoes near the tip of the Alaskan Peninsula. Little Pavlof is the small cone on the right horizon. The low saddle to the left separates Pavlof from Pavlof Sister, whose lower flanks are seen to the far left.
Pavlof, rising above low plains to its NW, is one of Alaska's most active volcanoes. It is part of a NNE-SSW-trending line of volcanoes near the tip of the Alaskan Peninsula. Little Pavlof is the small cone on the right horizon. The low saddle to the left separates Pavlof from Pavlof Sister, whose lower flanks are seen to the far left. · Foto: Photo by Steve McNutt, 1979 (University of Alaska, Alaska Volcano Observatory). · Wikimedia Commons
Tipe
Stratovolkan
Negara
United States
Wilayah
North America Volcanic Regions / Aleutian Ridge Volcanic Arc
Ketinggian
2493 m
Koordinat
55.417, -161.894
Letusan terakhir
2022
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

The most active volcano of the Aleutian arc, Pavlof is a Holocene stratovolcano that was constructed along a line of vents extending NE from the Emmons Lake caldera. Pavlof and Pavlof Sister to the NE form a dramatic pair of symmetrical, glacier-covered stratovolcanoes that overlook Pavlof and Volcano bays. Little Pavlof is a smaller cone on the SW flank of Pavlof volcano, near the rim of Emmons Lake caldera. Unlike Pavlof Sister, eruptions have frequently been reported from Pavlof, typically Strombolian to Vulcanian explosive eruptions from the summit vents and occasional lava flows. The active vents lie near the summit on the north and east sides. The largest recorded eruption took place in 1911, at the end of a 5-year-long eruptive episode, when a fissure opened on the N flank, ejecting large blocks and issuing lava flows.

Ringkasan Wikipedia

Gunung Pavlof adalah sebuah gunung berapi kerucut di Pegunungan Aleut di Semenanjung Alaska. Gunung ini telah menjadi salah satu gunung berapi paling aktif di Amerika Serikat sejak tahun 1980, dengan letusan tercatat pada tahun 1980, 1981, 1983, 1986–1988, 1996–1997, 2007, 2013, dua kali pada tahun 2014, 2016, dan 2021. Lava andesit basaltik dengan SiO2 sekitar 53% merupakan jenis lava yang paling umum di sini. Gunung berapi ini dipantau oleh Observatorium Gunung Api Alaska - program gabungan Survei Geologi Amerika Serikat (USGS), Institut Geofisika Universitas Alaska Fairbanks (UAFGI), dan Divisi Survei Geologi dan Geofisika Negara Bagian Alaska (ADGGS). Dengan skor ancaman sebesar 95, ancaman letusan di masa depan dianggap tinggi; sebagian besar ancaman ini berasal dari kemungkinan terganggunya jalur udara terdekat akibat pelepasan abu dalam jumlah besar. Gunung ini kini memiliki pemantauan dasar secara real-time, tetapi USGS ingin meningkatkan instrumentasi di lokasi tersebut. Gunung ini memiliki nama yang sama dengan gunung berapi di dekatnya, yakni Pavlof Sister, yang terakhir meletus pada tahun 1786.

Wikipedia · CC BY-SA · Baca artikel lengkap →

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1762~1788 · 1 letusan · VEI maks. 41788~1814 · 1 letusan · VEI maks. 21814~1840 · 3 letusan · VEI maks. 21840~1866 · 3 letusan · VEI maks. 21866~1892 · 3 letusan · VEI maks. 21892~1917 · 6 letusan · VEI maks. 31917~1943 · 4 letusan · VEI maks. 31943~1969 · 6 letusan · VEI maks. 21969~1995 · 13 letusan · VEI maks. 31995~2021 · 8 letusan · VEI maks. 317621814189219431995

Garis waktu rinci

  1. 2021VEI 2Teramati
    2021-08-05 – 2022-12-07
  2. 2016VEI 2Teramati
    2016-03-27 – 2016-07-30
    Summit crater
  3. 2014VEI 3Teramati
    2014-05-31 – 2014-06-06
    NE flank
  4. 2014VEI 3Teramati
    2014-11-12 – 2014-11-15
    Vent just N of summit and N flank
  5. 2013VEI 3Teramati
    2013-05-13 – 2013-06-26
    Summit crater
  6. 2007VEI 2Teramati
    2007-08-15 – 2007-09-13
  7. 2001VEI 1Perkiraan geologi
    2001-06-05 – Berlangsung
  8. 1996VEI 2Teramati
    1996-09-11 – 1997-01-03
  9. 1990VEI 2Teramati
    1990-03-05 – 1990-03-05
  10. 1986VEI 3Teramati
    1986-04-16 – 1988-08-13
    NNE & SE summit vents, NE & SE flanks
  11. 1983VEI 2Teramati
    1983-07-11 – 1983-07-18
  12. 1983VEI 3Teramati
    1983-11-11 – 1983-12-18
    Upper NNE flank
  13. 1982VEI 1Perkiraan geologi
    1982-07-15 – Berlangsung
  14. 1981VEI 1Teramati
    1981-03-30 – 1981-05-28
  15. 1981VEI 3Teramati
    1981-09-25 – 1981-09-27
    Upper NNE flank (100 m below summit)
  16. 1980VEI 1Teramati
    1980-07-06 – Berlangsung
  17. 1980VEI 3Teramati
    1980-11-08 – 1980-11-13
    Upper NNE flank
  18. 1975VEI 2Teramati
    1975-09-13 – 1977-03-16
  19. 1974VEI 1Teramati
    1974-03-12 – 1974-03-24
  20. 1974VEI 3Teramati
    1974-09-01 – 1975-01-13
  21. 1973VEI 2Teramati
    1973-11-12 – 1973-11-13
    Upper NE flank
  22. 1966VEI 2Teramati
    1966-03-15 – Berlangsung
    Upper NE or NNE flank
  23. 1960VEI 2Teramati
    1960-07-02 – 1963-06-16
    Upper NE or NNE flank
  24. 1958VEI 2Teramati
    1958-05-17 – 1958-08-28
    Upper NNE flank
  25. 1953VEI 1Teramati
    1953-11-25 – 1954-08-16
    Upper NE or NNE flank
  26. 1951VEI 2Teramati
    1951-10-16 – 1952-02-16
    Upper NE or NNE flank
  27. 1950VEI 2Teramati
    1950-07-31 – 1951-05-16
    Upper NE or NNE flank
  28. 1936VEI 3Teramati
    1936 – 1948-05
  29. 1929VEI 2Teramati
    1929-03 – 1931-08
  30. 1924VEI 2Teramati
    1924-01-17 – Berlangsung
  31. 1922VEI 2Teramati
    1922-12-24 – 1923-02-28
  32. 1917VEI 2Teramati
    1917-10 – Berlangsung
  33. 1914VEI 2Teramati
    1914-07-06 – Berlangsung
  34. 1906VEI 3Teramati
    1906 – 1911-12-07
    Summit and north flank fissure
  35. 1901VEI 2Teramati
    1901 – Berlangsung
  36. 1894VEI 2Teramati
    1894 – Berlangsung
  37. 1892VEI 2Teramati
    1892 – Berlangsung
  38. 1886VEI 2Teramati
    1886 – Berlangsung
  39. 1880VEI 1Teramati
    1880 – Berlangsung
  40. 1866VEI 2Teramati
    1866-03-14 – Berlangsung
  41. 1852VEI 1Perkiraan geologi
    1852 – Berlangsung
    Upper north flank
  42. 1846VEI 2Teramati
    1846-08 – 1846-08
  43. 1845VEI 2Teramati
    1845-08-12 – Berlangsung
  44. 1838VEI 1Teramati
    1838 – Berlangsung
  45. 1825VEI 2Teramati
    1825 – Berlangsung
  46. 1817VEI 2Teramati
    1817 – Berlangsung
  47. 1790VEI 2Teramati
    1790 – Berlangsung
  48. 1762VEI 4Perkiraan geologi
    1762 – 1786
    Volcano Uncertain

Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.