Fig 7 - uploaded by Hiroshi Aoyama
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a. Hypocenter location map of relocated earthquakes and focal mechanisms of 7 major earthquakes larger than M1.0. Focal mechanisms are shown by upper-hemisphere projection. Light and dark gray dots overlaid on the map express the hypocenters in October 1977 and April 1978, respectively (Original plot is given by
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We performed temporary dense observation at Usu volcano in summer 2006, aiming to reveal micro-earthquake activity under the summit crater during dormant period of the volcanic activity. During about 80 days of temporary observation, more than 330 volcanic earthquakes were observed. Of these earthquakes, well-recorded 142 events are selected for re...
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