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Alaid

Stratovolcano · Russia · 2285m

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. · Photo: Photo courtesy of Anatoli Khrenov, 1981 (Institute of Volcanology, Petropavlovsk). · Wikimedia Commons
Type
Stratovolcano
Country
Russia
Region
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Elevation
2285m
Coordinates
50.861, 155.565
Last eruption
2022
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Basalt / Picro-Basalt
Geological summary

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.

From Wikipedia

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.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1790~1813 · 1 eruptions · max VEI 41836~1860 · 1 eruptions · max VEI 31860~1883 · 1 eruptions · max VEI 31883~1906 · 1 eruptions · max VEI 21929~1952 · 1 eruptions · max VEI 21952~1976 · 2 eruptions · max VEI 31976~1999 · 6 eruptions · max VEI 41999~2022 · 4 eruptions · max VEI 217901836190619521999

Detailed timeline

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

External links

⚠ For reference only. Not for emergency response.