Facts
Name: Krenitsyn Peak
GVP Number: 290310
Synonims: Blackstone, Kuroisi
Region: Kuril Islands
Volcanic Area: Northern Kuriles
Coordinates: 49°21'12" N 154°42'29" E
Absolute Elevation: 1324 m
Status: Active
Aviation Color Code: GREEN
Location: Krenitsyn Peak is located in the southern part of Onekotan Island
Type: Stratovolcano
Composition: pyroxene andesites
Last known eruption: 1952/11/12 - 1952/11/19
Description
Krenitsyn Peak volcano is located somewhat eccentrically in the northwestern part of Tao-Rushyr Caldera,. The volcano rises 900 m from the waters of the lake occupying the caldera. The diameter of the base of the volcano at the lake level is 3.5-4 km. The summit crater with a diameter of 350 m and a depth of up to 100 m is wide open to the southeast, turning into a deep pothole, reaching the shore of the lake. On the northwestern slope of the volcano there is a second pothole. On the northeastern slope of the volcano, at an altitude of about 900 m, there is an old lateral explosive crater with a diameter of 400-450 m. The volcano is named after the explorer of the Aleutian Islands, the head of the government expedition 1768-1770, captain First rank Peter Kuzmich Krenitsyn [1-6].

References
Горшков Г.С. Вулканизм Курильской островной дуги / Отв. ред. Рудич К.Н. 1967. 288 с.
Горшков Г.С. Действующие вулканы Курильской островной дуги // Молодой вулканизм СССР. Труды Лаборатории вулканологии АН СССР. 1958. № 13. С. 5-70.
Горшков Г.С. Каталог действующих вулканов Курильских островов // Бюллетень вулканологических станций. 1957. № 25. С. 96-178.
Горшков Г.С. Названия вулканов на Курильских островах // Известия Всесоюзного географического общества. 1948. Т. 80. Вып. 2. С. 173-179.
Горшков Г.С. Петрографический и химический состав лав курильских вулканов // Геология СССР. 1964. Т. 31. С. 604-608.
Горшков Г.С. Пик Креницына // Бюллетень вулканологических станций. 1954. № 20. С. 60-63.
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 and thousands of kilometers from the volcano in different directions.
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