Figure 5 . (a) : Seismicity in a distance of 5 km of the MSH from 1996 until the M5.1 mainshock. Circles and hexagons are the earthquakes from 1996 to the end of 2005, and 2006 until before the M5.1, respectively. Dotted, solid, and dashed lines are Western, Central, and Eastern segments of the MSH, respectively. (b) : Histogram showing the distribution of earthquakes along the MSH.(c) : Distribution of scalar seismic moments along the MSH from 2006 until before the 2020 M5.1 mainshock. (d) : Distribution of scalar seismic moments along MSH from 2006 until 22 June 2020, including the M5.1 mainshock and 27 M>=2.5 early aftershocks.