Fig. 2From: Spatiotemporal evolution of tremor activity near the Nankai Trough trench axis inferred from the spatial distribution of seismic amplitudesa 2–8 Hz bandpass-filtered vertical-component waveform at station KMB08 and b temporal variation of source radiation amplitude between 09:00 and 09:40 on 13 December 2020. Circles denote the origin times of selected tremor locations after screening. c Locations of station KMB08 and the tremor events selected in a and bBack to article page