Main Volcanoes Kudryavy

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Name: Kudryavy
GVP Number: 290100
Synonims: Kudriavy, Kudryavyi
Region: Kuril Islands
Volcanic Area: Southern Kuriles
Coordinates:
45°22'59" N   148°48'47" E
Absolute Elevation: 991 m
Status: Active
Aviation Color Code: GREEN
Location: Kudryavy volcano is located on the northeastern extremity of Iturup Island
Type: Stratovolcano
Composition: andesites, andesite-basalts, basalts, dacites, rhyolites
Recent Known Eruption: 1999
Description
The summit of the Kudryavy cone is somewhat elongated in the latitudinal direction, and two craters are located on it. A shallow, gentle eastern crater is almost completely enclosed. The western crater is occupied by an extrusive dome, and a powerful lava flow flows from it. The slopes of the Kudryavy cone are relatively weakly divided and, along with subordinate loose deposits, are covered with numerous lava flows up to 2-3 km long, which descend in all directions, reaching the walls of the Medvezhiya caldera. In the west, at the foot of the Kudryavy cone, there is a large extrusive dome, Men’shoy Brat, whose base diameter exceeds 1 km, the relative height reaches almost 200 m [Gorshkov, 1967].
For the last ~ 100 years, the volcano has been in a state of active solfatar-fumarole activity, against the background of which separate phreatic explosions localized near extrusion sometimes occur, the last of which occurred in 1999.

References

Горшков Г.С. Вулканизм Курильской островной дуги / Отв. ред. Рудич К.Н. 1967. 288 с.
Potencial Hazard
Ash clouds, ash falls, pyroclastic flows, hot avalanches and lahars are a potential hazard associated with explosive eruptions of this volcano. The volcano poses a potential hazard to international and local airlines passing in the Kuriles region, since the height of its ash emissions can reach 10-15 km above sea level, ash plumes and clouds can drift hundreds of kilometers from the volcano in different directions.


 

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