Fig. 2From: Cascading rupture of patches of high seismic energy release controls the growth process of episodic tremor and slip eventsa The distribution of epicenters of regular earthquakes (circles and star) and the location of the array network (red square). The epicenters are colored according to their depth. b Plot showing the relation between the arrival time differences and the elevation differences for the earthquake shown by the star in (a). Black line shows a linear regression line determined by the least-squares method with a constraint of passing through the originBack to article page