ACTIVE VOLCANOES OF KAMCHATKA AND NORTHERN KURILES

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Alaid volcano
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SRTM perspective view with Landsat overlay
Image Data: Landsat 7 ETM+ (bands 3, 2 ,1)
Original Data Resolution: SRTM 3 arcsecond
(90 meters), Landsat 30 meters.
Processing by Dmitry Melnikov.
IAVCEI #
 0900-39
Lat/Long 50°52'N, 155°34'E
Last eruption 2012
Elevation 2,339 m
 
Hazard synopsis

Potential hazards are caused by ash plumes, ash falls, lava and pyroclastic flows, and lahars.

Alaid exposes high potential hazard to the aircrafts flying over Kamchatka and the Northern Kuriles because its eruptive clouds can rise to a height of 10-15 km above the crater and extend for hundreds of kilometers (up to 1500 km) and the duration of eruptions can exceed a few months.

Ash falls possible at:
Severo-Kurilsk (45 km to the south-east from the volcano)
Ozernovsky (90 km to the north-east)
Ust’-Bolsheretsk (215 km to the north-north-east)
Petropavlovsk-Kamchatsky (310 km to the north-east)
Monitoring status
Seismic, satellite monitoring
Form and structure
The stratovolcano belongs to the Somma-Vesuvius type. The central scoria cone with the height of 250 m is situated inside summit crater. There are 33 lateral cones on the flanks of the volcano.
Volcanic activity
The types of eruptions are strombolian, vulcanian, subplinian

1793 - an eruption of the summit crater
1854 - strong explosive eruption of the summit crater
1860 - eruption of the summit crater
1894 - eruption of the summit crater
1933-1934 - the initial flank eruption - Taketomi
1972 - the initial flank eruption - Olimpiysky
1981 - the strong explosive eruption of the summit crater with vulcanian, vulcano-strombolian and subplinian types of activity
1986 - a small destruction of the 1981-year summit scoria cone
2012 - explosive eruption of the summit crater

KVERT information releases.
Location
The volcano-Island, the most northern in the Kurile archipelago, is situated at a distance 30 km north-west from Paramushir and 70 km south-west from Kamchatka
Composition
Basalts
Age
40,000-50,000 years


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