Fig. 3From: Application of the on-site P-wave earthquake early warning method based on site-specific ratios of S-waves to P-waves to the 2016 Kumamoto earthquake sequence, JapanHistograms of the epicentral distance (a) and the maximum acceleration (b) for earthquake datasets recorded at all the stations shown in Fig. 1. Ndata indicates the number of earthquake datasets recorded at all the stations used in this studyBack to article page