Volcano Koryaksky. Facts
Name: Koryaksky
GVP Number: 300090
Synonims: Koryakskaya, Koryatskaya, Streloshnaya
Region: Kamchatka Peninsula
Volcanic Zone: Eastern Kamchatka
Coordinates: 53°19'15" N 158°42'43" E
Absolute Elevation: 3456 m
Status: Active
Aviation Color Code: GREEN
Location: Volcano Koryaksky is located to the northwest from Avachinsky Volcano, at a distance of 30 km from Petropavlovsk-Kamchatsky
Type: Stratovolcano
Composition: high-aluminium basalts, high-magnesium basalts, andesite-basalts, two-pyroxene andesites, hornblend andesites, dacites
Last known eruption: 2008/12/20 - 2009/8/26

Koryaksky volcano with a edifice diameter of 20 km is a typical stratovolcano with interbedding lava flows and pyroclastic deposits. The volcano is somewhat elongated from east to west, the central near-top part of the volcano is steep. In the western part of the volcano there is an active crater with a diameter of 180-200 m and a depth of up to 30 m, open to the south. The active fumarole areas are located in the crater and on the western slope of the volcano at an altitude of 3 km a.s.l. In the northern summit part of the volcano there is a circus with a diameter of 500 m, from which two largest glaciers descend to the foot of the volcano. Numerous cinder and lava cones are noted on the slopes and at the foot of the volcano.

Маренина Т.Ю., Тимербаева К.М., Сирин А.Н. Корякский вулкан на Камчатке // Труды Лаборатории вулканологии АН СССР. 1962. Вып. 22. С. 67-130.
Масуренков Ю.П., Пузанков М.Ю., Егорова И.А. Вулкан Корякский / Действующие вулканы Камчатки. В 2-х т. T. 2. М.: Наука. 1991. С. 228-243.
Potencial Hazard
There are possibly explosive and explosive-effusive eruptions of the volcano. There is possible catastrophic eruption with a destruction of a north-western sector of the volcano. The volcano could constitute a potential hazard to international and local airlines at Kamchatka.
Related Resources
Active Volcanoes of Kamchatka and Kuriles
Holocene Kamchatka volcanoes