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KVERT: ACTIVE VOLCANOES OF KAMCHATKA AND NORTHERN KURILES

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Plosky Tolbachik Volcano
GVP Number 300240
IAVCEI Number 1000-24-
Location 55°49'44" N, 160°23'25" E
Last Eruption 2012/11/27 - 2013/9/15
Elevation 3085 m
Location
The volcano is located in the south-western sector of the Klyuchevskaya group of the volcanoes 63 km from Klyuchi and 343 km from Petropavlovsk-Kamchatsky.
Form and structure
Ostry Tolbachik and Plosky Tolbachik volcanoes compose a single large volcanic massif. The 1800 m diameter caldera with a depth of 450 m that has been formed in 1975 is nested at the summit of Plosky Tolbachik.
Composition
Basalts and andesibasalts
Age
The later half of Upper Pleistocene
 
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Aviation color code
GREEN
Last VONA/KVERT Releases
Hazard synopsis
Potential danger could be caused by terminal eruptions producing ash clouds to an altitude of 5 km a.s.l. Moreover, explosive eruptions sending ash clouds up to 10 – 15 km a.s.l. are possible in regional zones of cinder cones in the south and north from the volcano. These eruptions could pose a thread to local and international aviation.
Monitoring status
seismic, satellite, visual
Eruptions
2012/11/27 – 2013/9/15  
1975/7/6 – 1976/12/10  
1975/6/28 – 1976/12/10  
1941/5/7 – 1941/5/14  


 
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