|On Chirpoi itself there are four closely spaced cones. The northernmost cone, Chirpoi, is cut by a fault on the northwest; the near-crater part on the east is preserved, as is the eastern half on the cone, but the flanks of the cone are rather badly eroded.
Gorshkov G.S. Volcanism and the Upper Mantle: Investigations in the Kurile Island Arc. New York-London: Plenum Press. 1970. 385 p.