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Alaid

Stratovolkan · Russia · 2285 m

An ash plume rises above Alaid on 30 April 1981, at the peak of an eruption that began on 27 April (seen here from the N). The plume extended 2,000 km to the SE. The volcano has a 1.5-km-wide summit crater and numerous cones across the lower flanks. Explosive eruptions in 1790 and 1981 were among the largest in the Kuril Islands.
An ash plume rises above Alaid on 30 April 1981, at the peak of an eruption that began on 27 April (seen here from the N). The plume extended 2,000 km to the SE. The volcano has a 1.5-km-wide summit crater and numerous cones across the lower flanks. Explosive eruptions in 1790 and 1981 were among the largest in the Kuril Islands. · Foto: Photo courtesy of Anatoli Khrenov, 1981 (Institute of Volcanology, Petropavlovsk). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Russia
Wilayah
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Ketinggian
2285 m
Koordinat
50.861, 155.565
Letusan terakhir
2022
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

The highest and northernmost volcano of the Kuril Islands, Alaid is a symmetrical stratovolcano when viewed from the north, but has a 1.5-km-wide summit crater that is breached open to the south. This basaltic to basaltic andesite volcano is the northernmost of a chain constructed west of the main Kuril archipelago. Numerous pyroclastic cones are present the lower flanks, particularly on the NW and SE sides, including an offshore cone formed during the 1933-34 eruption. Strong explosive eruptions have occurred from the summit crater beginning in the 18th century. Reports of eruptions in 1770, 1789, 1821, 1829, 1843, 1848, and 1858 were considered incorrect by Gorshkov (1970). Explosive eruptions in 1790 and 1981 were among the largest reported in the Kuril Islands.

Ringkasan Wikipedia

Ringkasan Inggris

Alaid, also called Atlasov due to its location or Araido in Japanese, is a volcano on Atlasov Island of the Kuril Islands, Russia. It is the northernmost volcano of the islands, and one of the most active. The height is disputed between 2,285 metres (7,497 ft) to 2,339 metres (7,674 ft) tall. It is the highest peak of the Kuril Islands.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1790~1813 · 1 letusan · VEI maks. 41836~1860 · 1 letusan · VEI maks. 31860~1883 · 1 letusan · VEI maks. 31883~1906 · 1 letusan · VEI maks. 21929~1952 · 1 letusan · VEI maks. 21952~1976 · 2 letusan · VEI maks. 31976~1999 · 6 letusan · VEI maks. 41999~2022 · 4 letusan · VEI maks. 217901836190619521999

Garis waktu rinci

  1. 2022VEI 2Teramati
    2022-09-10 – 2022-11-26
  2. 2018VEI 1Teramati
    2018-08-21 – 2018-08-21
    Summit crater
  3. 2015VEI 1Teramati
    2015-09-29 – 2016-08-11
    Summit crater
  4. 2012VEI 2Teramati
    2012-10-05 – 2012-12-12
    Summit crater
  5. 1997VEI ?Perkiraan geologi
    1997-08-23 – 1997-08-23
  6. 1996VEI 2Teramati
    1996-12-03 – Berlangsung
  7. 1986VEI 2Teramati
    1986-05-25 – 1986-05-28
  8. 1982VEI 2Teramati
    1982-03-29 – 1982-03-29
  9. 1981VEI 4Teramati
    1981-04-27 – 1981-06-05
  10. 1981VEI 2Teramati
    1981-11-25 – Berlangsung
  11. 1973VEI ?Perkiraan geologi
    1973-07-02 – Berlangsung
  12. 1972VEI 3Teramati
    1972-06-18 – 1972-09-11
    NW foot
  13. 1933VEI 2Teramati
    1933-11-13 – 1934-08
    East submarine flank (Taketomi)
  14. 1894VEI 2Teramati
    1894 – Berlangsung
  15. 1860VEI 3Teramati
    1860-07-07 – 1860-07-09
  16. 1854VEI 3Teramati
    1854-06-27 – Berlangsung
  17. 1790VEI 4Teramati
    1790 – 1793

Tautan eksternal

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