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Fig. 3 | Earth, Planets and Space

Fig. 3

From: Waveform inversion of the ultra-long-period seismic event associated with ground tilt motion during an eruption of Mount Kusatsu–Shirane, Japan, on January 23, 2018

Fig. 3

Recorded waveforms. a Velocity waveforms recorded by broadband seismometers and b tilt waveforms recorded by tiltmeters around the eruption onset time. The red line shows the eruption onset time (10:02:09 Japan Standard Time (JST)) at Mount Motoshirane. The gray band represents the time window used in this study (09:58:20–10:10:00 JST)

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