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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Precursory tilt changes of small phreatic eruptions of Meakan-dake volcano, Hokkaido, Japan, in November 2008

Fig. 1

Contour map and station distribution around Meakan-dake volcano. Black circles indicate broadband seismic stations from which the data used in this study was obtained. Outlined inverted triangles express seismic stations with short-period seismometers operated by Sapporo District Meteorological Observatory, Japan Meteorological Agency. Dotted circles show summit crater areas of Naka-Machineshiri and Pon-Machineshiri. There are several craters within the Pon-Machineshiri crater. The 2008 eruption occurred at the 96-1 crater on the southern rim of the Pon-Machineshiri crater. The 2006 eruption opened new pits in the northwestern rim of the Akanuma crater, on the opposite side of the Pon-Machineshiri crater

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