Schmidt volcano is a large 2020-m-high mid- to upper-Pleistocene shield-like volcano located north of Kronotsky volcano and SW of Gamchen volcano (Lutchitsky, 1974). A dike complex is prominent on the eroded volcano, which was constructed along a NE-trending fault zone. Following the cessation of activity at Schmidt volcano during the Pleistocene, regional basaltic volcanism produced some monogenetic cinder cones that were erupted through the eastern and NE flanks of the volcano during the Holocene (Andreev et al., 1988).