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Earth, Planets and Space
Fig. 5. | Earth, Planets and Space

Fig. 5.

From: The 2011 eruptive activity of Shinmoedake volcano, Kirishimayama, Kyushu, Japan—Overview of activity and Volcanic Alert Level of the Japan Meteorological Agency—

Fig. 5.

One second averaged amplitude of infrasonic wave at station YNN and velocity vertical component seismogram (one second averaged amplitude) at station SSE and tilt record at station TCG associated with subplinian eruption events and subsequent lava growth. Gray zones indicate three subplinian eruption events each lasting several hours. Tilt records are corrected to remove tidal effects by BAYTAP-G (Ishiguro and Tamura, 1985). Lower panel shows an expanded view of January 26–27 at the start of magmatic eruptive activity.

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