Fig. 2
From: Activated seismicity by strain rate change in the Yaeyama region, south Ryukyu
Epicenter distribution of earthquakes from January 1994 to December 2017 for those with depths shallower than 30 km and magnitudes over 2.0. a Magnitude completeness. The solid lines show the contours where the magnitude completeness was 2.0. The dotted lines show the contours of 1994–1995 and 2000–2001 where the magnitude completeness was 2.3. The lines are colored corresponding to the initial year for the period in which the Mc was calculated. Yellow triangles show the JMA seismic stations. b Locations of earthquake swarms and large earthquakes. Dotted rectangles show the areas where the cumulative number of earthquakes is plotted in Fig. 3. The CMT solution shows the event of Eq1 (Fnet, NIED). c The CMT solutions of the earthquakes (between January 2000 and March 2018) whose depths are shallower than 20 km. The CMT solutions of Fnet provided by NIED were plotted