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A weak phreatic eruption of June 2010 on Ekarma Volcano, Kuril Islands as a possible precursor of a future large magmatic eruption |
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| Authors: | A V Rybin A V Degterev E A Kravchunovskaya M V Chibisova A S Neroda I V Melekestsev N G Razzhigaeva S A Chashchin S A Chirkov I G Koroteev Kh A Arslanov |
| Institution: | 1. Institute of Marine Geology and Geophysics, Far East Branch, Russian Academy of Sciences, ul. Nauki 1B, Yuzhno-Sakhalinsk, 693022, Russia 2. Institute of Volcanology and Seismology, Far East Branch, Russian Academy of Sciences, bul??var Piipa 9, Petropavlovsk-Kamchatskii, 683006, Russia 3. Il??ichev Pacific Institute of Oceanology, Far East Branch, Russian Academy of Sciences, ul. Baltiiskaya 43, Vladivostok, 690041, Russia 4. Pacific Institute of Geography, Far East Branch, Russian Academy of Sciences, ul. Radio 7, Vladivostok, 690041, Russia 5. Far East Geological Institute, Far East Branch, Russian Academy of Sciences, pr-t 100-letiya Vladivostoku 159, Vladivostok, 690041, Russia 6. St. Petersburg State University, St. Petersburg, V.O., 10 liniya 33, 199178, Russia |
| Abstract: | We provide data concerning a weak phreatic eruption of Ekarma Volcano on Ekarma Island, in the Kurils, in June 2010. The ash plumes did not rise higher than 3 km above sea level. A preliminary estimate of the volume of erupted resurgent material (mostly tephra) is on order 2 × 105 m3. Reconstruction of the volcano??s history and the dynamics of its eruptive activity for the last 4500?C5000 years suggests that a larger eruption can occur during the next few decades that will discharge juvenile pyroclastics and/or lava. |
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