Fig. 3
From: Migration of earthquakes with a small stress drop in the Tanzawa Mountains, Japan
a Seismicity in the Tanzawa Mountains from 2000 to 2012 (M ≥ 2) as a function of time. Earthquakes with latitudes from 35.4° N to 35.6° N, longitudes from 138.9° E to 139.1° E, and depths shallower than 50 km are plotted. b Map view of the seismicity. The size and color of the symbols indicate the magnitude and depth of the earthquakes, respectively. Cross sections of the seismicity in the square are shown in (c). c Cross section of the seismicity with strikes of N135° E and N45° E. Red symbols show hypocenters of earthquakes that occurred within 50 h after the first earthquake of the cluster activity at 22:39 UT on January 27, 2012