KVERT: ACTIVE VOLCANOES OF KAMCHATKA АND NORTHERN KURILES. Chikurachki volcano.

VOLCANOES OF NORTHERN KURILES

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Russian

Chikurachki volcano

Current Activity:

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 #	0900-36
Lat/Long	50°19'N, 155°28'E
Last eruption	2008
Elevation	1,816 m

Hazard synopsis

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

The volcano constitutes a potential hazard to commercial aircrafts flying over Kamchatka and the Northern Kuriles because its eruptive clouds can rise to a height of 6-11 km ASL and extend for hundreds of kilometers and the duration of eruptions can exeed a few months.

Ash falls possible at:
Severo-Kurilsk (60 km to the north-east from the volcano)
Ozernovskiy (145 km to the north-east)

Monitoring status

Satellite monitoring

Form and structure

The stratovolcano is nested on the volcanic ridge of Karpinsky merging with Tatarinov volcano in the south. Its regular cone mostly consists of pyroclastic rocks and is situated on the ancient lava basis.

Volcanic activity

1853 - powerful explosive-effusive eruption of plinian type
1854-1859 - a weak explosions
1958 - an explosive eruption of strombolian type
1961 - a weak explosive eruption of strombolian-vulcanian type, heavy ash fall
1964 - a weak explosive eruption
1973 - a weak explosive eruption of vulcanian type
1986 - a strong explosive-effusive eruption
2002 - an explosive eruption of vulcanian type, ash falls
2003 - an explosive eruption of vulcanian type, ash falls
2005 - a weak ash explosions
2007 - a weak ash explosions
2008 - a weak ash explosions

Fumarolic activity between the eruptions was observing at the volcano

KVERT information releases.

Location

Chikurachki, the nothern volcano in Karpinsky ridge, is located in the south-western part of Paramushir Island, 60 km to the south-west from Severo-Kurilsk.

Composition

From basalts to andesits

Age

40,000-50,000 years