Fig. 5
From: Preparatory and precursory processes leading up to the 2014 phreatic eruption of Mount Ontake, Japan
An example of waveforms at the detection time of M-1.1 event using a template event (2014/09/17. 09:34:47.75). The gray and red lines are the continuous and template event waveforms for seismic stations aligned according to epicentral distance, respectively. The window of the template event is 4 s, starting from 2.0 s prior to the synthetic S-wave arrival time. The station names and components are given to the left of each trace. Waveforms were bandpass filtered between 4 and 12 Hz, and the amplitudes of waveforms were normalized by the maximum value at each station