Monitoring of the eruption of the Sarychev Peak Volcano in Matua Island in 2009 (central Kurile islands) |
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| Authors: | Levin B W Rybin A V Vasilenko N F Prytkov A S Chibisova M V Kogan M G Steblov G M Frolov D I |
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| Institution: | (1) Institute of Marine Geology and Geophysics, Sakhalin Volcanic Eruption Response Team, Nauki Street, Yuzhno-Sakhalinsk, Russia, 693022;(2) University of Alaska Fairbanks Geophysical Institute, Alaska Volcano Observatory, 903 Koyukuk Drive, Fairbanks, AK USA, 99775-7320;(3) US Geological Survey, Alaska Volcano Observatory, 4210 University Dr., Anchorage, AK USA, 99508-4664;(4) Jet Propulsion Laboratory, National Aeronautics and Space Administration, 4800 Oak Grove Drive, Pasadena, CA USA, 91109-8099;(5) Geophysical Institute/Alaska Volcano Observatory, University of Alaska Fairbanks, 903 Koyukuk Drive, Fairbanks, AK 99775-7320, USA; |
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| Abstract: | In June 2009, one of the greatest eruptions of the Sarychev Peak volcano in Matua Island (48°06′ N, 153°12′ E) for the recent
historical period occurred. With the help of satellite sounding methods, the first signs of volcanic activity were recorded
and all the stages of the explosive eruption were traced. During the expeditionary investigations in the active volcano, unique
data on the character of the eruption were obtained. The volume of erupted material was 0.4 cubic km, which lead to an increased
area of Matua Island by 1.4 square km. The GPS observation station set at the distance of 7 km from the volcano recorded the
rapid displacement of the Earths’s surface during the first two days of the active phase of eruption. This eruption of the
Sarychev Peak volcano occurred 2.5 years after the catastrophic Simushir earthquakes in the period of intensive relaxation
of stresses in the middle of the central part of the Kurile island arc. |
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