Amerika Serikat · Stratovolkan
Gunung Pavlof
Pavlof
- Tipe
- Stratovolkan
- Ketinggian
- 2493 m
- Letusan terakhir
- 2022
- Tipe
- Stratovolkan
- Negara
- Amerika Serikat
- Wilayah
- Amerika Utara / Aleutian Ridge Volcanic Arc
- Ketinggian
- 2493 m
- Koordinat
- 55.417, -161.894
- Letusan terakhir
- 2022
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
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
Ringkasan InggrisMount Pavlof or Pavlof Volcano is a stratovolcano of the Aleutian Range on the Alaska Peninsula. It has been one of the most active volcanoes in the United States since 1980, with eruptions recorded in 1980, 1981, 1983, 1986–1988, 1996–1997, 2007, 2013, twice in 2014, 2016, and again in 2021-2022. It is not currently erupting (as of October 15, 2024). The most common lava type here is basaltic andesite and the 2013-2014 lavas contained approximately 53 wt.% SiO2. The volcano is monitored by the Alaska Volcano Observatory- a joint program of the United States Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS). With a threat score of 95, the threat from future eruptions is considered to be high; much of this threat comes from the possibility of disruption of nearby air routes by large releases of ash. The mountain shares a name with the nearby Pavlof Sister, which is thought to have last erupted from 1762 to 1786, although this period of activity is sometimes attributed to Pavlof volcano instead.
Wikipedia · CC BY-SA · Baca artikel lengkap →
Riwayat letusan
48 tercatatGlosariumGaris waktu rinci
- 2021VEI 2Teramati2021-08-05 – 2022-12-07
- 2016VEI 2Teramati2016-03-27 – 2016-07-30Summit crater
- 2014VEI 3Teramati2014-05-31 – 2014-06-06NE flank
- 2014VEI 3Teramati2014-11-12 – 2014-11-15Vent just N of summit and N flank
- 2013VEI 3Teramati2013-05-13 – 2013-06-26Summit crater
- 2007VEI 2Teramati2007-08-15 – 2007-09-13
- 2001VEI 1Metode tidak dinyatakan2001-06-05 – akhir tidak diketahui
- 1996VEI 2Teramati1996-09-11 – 1997-01-03
- 1990VEI 2Teramati1990-03-05 – 1990-03-05
- 1986VEI 3Teramati1986-04-16 – 1988-08-13NNE & SE summit vents, NE & SE flanks
- 1983VEI 2Teramati1983-07-11 – 1983-07-18
- 1983VEI 3Teramati1983-11-11 – 1983-12-18Upper NNE flank
- 1982VEI 1Metode tidak dinyatakan1982-07-15 – akhir tidak diketahui
- 1981VEI 1Teramati1981-03-30 – 1981-05-28
- 1981VEI 3Teramati1981-09-25 – 1981-09-27Upper NNE flank (100 m below summit)
- 1980VEI 1Teramati1980-07-06 – akhir tidak diketahui
- 1980VEI 3Teramati1980-11-08 – 1980-11-13Upper NNE flank
- 1975VEI 2Teramati1975-09-13 – 1977-03-16
- 1974VEI 1Teramati1974-03-12 – 1974-03-24
- 1974VEI 3Teramati1974-09-01 – 1975-01-13
- 1973VEI 2Teramati1973-11-12 – 1973-11-13Upper NE flank
- 1966VEI 2Teramati1966-03-15 – akhir tidak diketahuiUpper NE or NNE flank
- 1960VEI 2Teramati1960-07-02 – 1963-06-16Upper NE or NNE flank
- 1958VEI 2Teramati1958-05-17 – 1958-08-28Upper NNE flank
- 1953VEI 1Teramati1953-11-25 – 1954-08-16Upper NE or NNE flank
- 1951VEI 2Teramati1951-10-16 – 1952-02-16Upper NE or NNE flank
- 1950VEI 2Teramati1950-07-31 – 1951-05-16Upper NE or NNE flank
- 1936VEI 3Teramati1936-07-02 – 1948-05-16
- 1929VEI 2Teramati1929-03-16 – 1931-08-16
- 1924VEI 2Teramati1924-01-17 – akhir tidak diketahui
- 1922VEI 2Teramati1922-12-24 – 1923-02-28
- 1917VEI 2Teramati1917-10-16 – akhir tidak diketahui
- 1914VEI 2Teramati1914-07-06 – akhir tidak diketahui
- 1906VEI 3Teramati1906-07-02 – 1911-12-07Summit and north flank fissure
- 1901VEI 2Teramati1901-07-02 – akhir tidak diketahui
- 1894VEI 2Teramati1894-07-02 – akhir tidak diketahui
- 1892VEI 2Teramati1892-07-02 – akhir tidak diketahui
- 1886VEI 2Teramati1886-07-02 – akhir tidak diketahui
- 1880VEI 1Teramati1880-07-02 – akhir tidak diketahui
- 1866VEI 2Teramati1866-03-14 – akhir tidak diketahui
- 1852VEI 1Metode tidak dinyatakan1852-07-02 – akhir tidak diketahuiUpper north flank
- 1846VEI 2Teramati1846-08-16 – 1846-08-16
- 1845VEI 2Teramati1845-08-12 – akhir tidak diketahui
- 1838VEI 1Teramati1838-07-02 – akhir tidak diketahui
- 1825VEI 2Teramati1825-07-02 – akhir tidak diketahui
- 1817VEI 2Teramati1817-07-02 – akhir tidak diketahui
- 1790VEI 2Teramati1790 – akhir tidak diketahui
- 1762VEI 4Metode tidak dinyatakan1762 – 1786Volcano Uncertain
Gunung api terdekat
Tautan eksternal
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.