Krenitsyn Peak is located in the southern part of Onekotan Island

The volcano rises 900 m from the waters of the lake, occupying the Tao-Rushyr 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. The second pothole is located on the northwestern slope of the volcano. On its northeastern slope at an altitude of about 900 m, there is an old lateral explosive crater with a diameter of 400-450 m.

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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