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Earth, Planets and Space
Fig. 4. | Earth, Planets and Space

Fig. 4.

From: Continuous long-term array analysis of seismic records observed during the 2011 Shinmoedake eruption activity of Kirishima volcano, southwest Japan

Fig. 4.

Rose diagram of the back azimuths from the seismic array (shown as the small black dot) of the P wave time window obtained for the nine recorded explosion earthquakes. The rose diagram has a 3° interval. The back azimuths are those with maximum semblance values in the P wave time window of each explosion earthquake. Most back azimuths point to Shinmoedake crater, and a few point slightly north of the crater. The inflation source estimated with GPS data (Japan Meteorological Agency, 2012b) is shown by the large black dot.

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