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Kostakan

Pyroclastic cone · Russia · 1150m

A N-S-trending chain of scoria cones lies in the Kostakan valley south of Bakening volcano. The 600-year-old Glavny scoria cone (left center) is surrounded by its lava flow, which dammed a small river to form beautiful Kostakan lake. Two small vegetated early Holocene cones lie along the opposite side of the lake.
A N-S-trending chain of scoria cones lies in the Kostakan valley south of Bakening volcano. The 600-year-old Glavny scoria cone (left center) is surrounded by its lava flow, which dammed a small river to form beautiful Kostakan lake. Two small vegetated early Holocene cones lie along the opposite side of the lake. · Photo: Copyrighted photo by Sergei Konyaev (Holocene Kamchataka volcanoes; http://www.kscnet.ru/ivs/volcanoes/holocene/main/main.htm).
Type
Pyroclastic cone
Country
Russia
Region
Northwestern Pacific Volcanic Regions / Eastern Kamchatka Volcanic Arc
Elevation
1150m
Coordinates
53.833, 158.052
Last eruption
1350
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Minor (Basaltic)
Major rock type
Basalt / Picro-Basalt
Geological summary

A group of basaltic cinder cones lies south of Bakening volcano, west of the Srednaya Avacha (Middle Avacha) river valley. They are part of a broad zone of regional late Pleistocene to Holocene basaltic volcanism west of the Eastern volcanic zone of Kamchatka that extends from the Kostakan Lake area to the south. Several of the cinder cones are breached by lava flows, some of which extend into the Srednaya Avacha valley. The highest-elevation vent, Zmeya crater, was constructed within a landslide scarp. An unnamed maar is located about 2 km S of Kostakan Lake. Eruptions have occurred during two time periods, between about 11,000 to 7,000 years ago and between about 1,200 and 600 years ago.

From Wikipedia

Kostakan is a north-south trending chain of cinder cones located in the southern part of the Kamchatka Peninsula, Russia.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
8050 BCE~7737 BCE · 1 eruptions · max VEI 36797 BCE~6483 BCE · 1 eruptions · max VEI 3723~1037 · 2 eruptions · max VEI 31037~1350 · 2 eruptions · max VEI 28050 BCE5857 BCE3350 BCE1157 BCE1037

Detailed timeline

  1. 1350VEI 1Geological estimate
    1350 – Ongoing
    Glavny
  2. 1200 (±50 yrs)VEI 2Geological estimate
    1200 – Ongoing
    Glavny
  3. 1000 (±50 yrs)VEI 3Geological estimate
    1000 – Ongoing
    Serpovidny
  4. 800 (±50 yrs)VEI 3Geological estimate
    800 – Ongoing
    Maar S of Lake Kostakan, Krasny cone
  5. 6550 BCE (±500 yrs)VEI 3Geological estimate
    BCE 6550 – Ongoing
    Ochkovy
  6. 8050 BCE (±1000 yrs)VEI 3Geological estimate
    BCE 8050 – Ongoing
    Domashnii

External links

⚠ For reference only. Not for emergency response.