A single historic eruption at Tao-Rusyr was from Krenitzyn Peak on the volcano’s east flank in 1952. This explosive eruption (VEI=3) was from a crater lake and constructed a lava dome. Tao-Rusyr Caldera formed during a very large explosive eruption (VEI=6) in about 5550 BC.
Looking east to Onekotan Island with Nemo Peak and Tao-Rusyr Caldera. Harimkotan, an active stratovolcano, is the island on the right. Space Shuttle photo STS068-231-054. Photo taken October 1994.
OREGON STATE UNIVERSITY
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