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Russia · Stratovolcano

Chikurachki

Type
Stratovolcano
Elevation
1781m
Last eruption
2023
Chikurachki
Photo: Korea Aerospace Research Institute · KOGL Type 1 · Wikimedia Commons
Type
Stratovolcano
Country
Russia
Region
Northwestern Pacific / Kuril Volcanic Arc
Elevation
1781m
Coordinates
50.324, 155.461
Last eruption
2023
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Basalt / Picro-basalt
Geological summary

Chikurachki, the highest volcano on Paramushir Island in the northern Kuriles, is a relatively small cone constructed on a high Pleistocene edifice. Oxidized basaltic-to-andesitic scoria deposits covering the upper part of the cone give it a distinctive red color. Frequent basaltic Plinian eruptions have occurred during the Holocene. Lava flows have reached the sea and formed capes on the NW coast; several young lava flows are also present on the E flank beneath a scoria deposit. The Tatarinov group of six volcanic centers is located immediately to the south, and the Lomonosov cinder cone group, the source of an early Holocene lava flow that reached the saddle between it and Fuss Peak to the west, lies at the southern end of the N-S-trending Chikurachki-Tatarinov complex. The Tatarinov centers are extensively modified by erosion and have a more complex structure. Tephrochronology gives evidence of an eruption around 1690 CE from Tatarinov, although its southern cone contains a sulfur-encrusted crater with fumaroles that were active along the margin of a crater lake until 1959.

From Wikipedia

Chikurachki is the highest volcano on Paramushir Island in the northern Kuril Islands. It is actually a relatively small volcanic cone constructed on a high Pleistocene volcanic edifice. Oxidized andesitic scoria deposits covering the upper part of the young cone give it a distinctive red color. Lava flows from the 1,816-metre (5,958 ft) high Chikurachki reached the sea and formed capes on the northwest coast; several young lava flows also emerge from beneath the scoria blanket on the eastern flank.

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Eruption history

29 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
9360 BCE~8981 BCE · 1 eruptions · max VEI 28601 BCE~8222 BCE · 1 eruptions · max VEI ?7842 BCE~7463 BCE · 1 eruptions · max VEI 26325 BCE~5945 BCE · 1 eruptions · max VEI 42151 BCE~1771 BCE · 1 eruptions · max VEI 41771 BCE~1392 BCE · 2 eruptions · max VEI 41644~2023 · 22 eruptions · max VEI 49360 BCE6704 BCE3668 BCE1012 BCE1644

Detailed timeline

  1. 2023VEI 2Observed
    2023-01-28 – 2023-02-08
  2. 2022VEI 2Observed
    2022-01-17 – 2022-10-17
  3. 2021VEI 1Observed
    2021-03-21 – 2021-08-25
  4. 2016VEI 2Observed
    2016-03-29 – 2016-03-31
    Summit crater
  5. 2016VEI 2Observed
    2016-07-27 – 2016-08-30
    Summit crater
  6. 2015VEI 3Observed
    2015-02-16 – 2015-02-18
    Summit crater
  7. 2008VEI 2Observed
    2008-07-29 – 2008-08-08
  8. 2007VEI 2Observed
    2007-03-04 – 2007-04-18
  9. 2007VEI 2Observed
    2007-08-19 – 2007-11-01
  10. 2005VEI 1Observed
    2005-03-12 – 2005-04-07
  11. 2003VEI 2Observed
    2003-04-17 – 2003-07-03
  12. 2002VEI 2Observed
    2002-01-25 – 2002-04-22
    SSE part of summit crater
  13. 1986VEI 4Observed
    1986-11-18 – 1986-12-07
  14. 1973VEI 2Observed
    1973-08-10 – 1973-09-28
  15. 1967VEI 2Observed
    1967-09-06 – 1967-09-20
  16. 1964VEI 2Observed
    1964-02-01 – 1964-02-16
  17. 1961VEI 1Observed
    1961-05-02 – 1961-08-10
  18. 1958VEI 2Observed
    1958-05-26 – 1958-05-27
  19. 1957VEI 2Observed
    1957-05-16 – end unknown
  20. 1933VEI ?Method not stated
    1933-04-15 – end unknown
  21. 1853VEI 3Observed
    1853-12-16 – 1859-07-02
  22. 1690 (±10 yrs)VEI 4Geological estimate
    1690 – end unknown
    Tatarinov
  23. 1500 BCE (±250 yrs)VEI 4Geological estimate
    1500 BCE – end unknown
  24. 1750 BCEVEI 3Geological estimate
    1750 BCE – end unknown
  25. 1950 BCEVEI 4Geological estimate
    1950 BCE – end unknown
  26. 6310 BCE (±70 yrs)VEI 4Geological estimate
    6310 BCE – end unknown
  27. 7550 BCEVEI 2Geological estimate
    7550 BCE – end unknown
  28. 8500 BCE (±950 yrs)VEI ?Geological estimate
    8500 BCE – end unknown
    Lomonosov
  29. 9360 BCE (±80 yrs)VEI 2Geological estimate
    9360 BCE – end unknown

Nearby volcanoes

External links

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