Fig. 11
From: A short history of Japanese historical seismology: past and the present
Observed highest seismic intensities of Japan since 1885 till August 2016. The highest intensities reported at JMA observatories from 1885 to March 1996, and the highest instrumental seismic intensities recorded from April 1996 to August 2016 are shown. The higher intensities are plotted on the upper layer. JMA intensity 7, which is the highest, appears only some places near the source of shallow large earthquakes, and only one place in Tohoku district due to the 2011 off Tohoku district earthquake of M9.0