Volcanoes of Kamchatka
Deep seismic events and tsunamis are fairly common. Intense volcanism is caused by the subduction of the Pacific Plate. A pair of huge earthquakes occurred off the coast on October 16, 1737, and on November 4, 1952, in magnitudes ~9.3 and 8.2 respectively. More shallow earthquakes were recorded as recently as April 2006.