Additional Supporting Information (uploaded as a separate file)
Data file containing information of 4537 earthquakes: qinfo.dat
Data description in the file:
The file lists date & time, location, event ID and stress drop & corner frequency information of all 4537 earthquakes. First row of the file shows the variable name of each column. Except for Mw, stress drop and corner frequency (fc), all other information is in the Northern California double-difference catalog (WNC catalog, Waldhauser, 2009; Waldhauser & Schaff, 2008), downloaded from Northern California Earthquake Data Center (NCEDC); Mw represents moment magnitude obtained in this study after magnitude calibration from NCEDC catalog, and stress drops & corner frequencies are from Strategy 6 with temporal corrections (see the main texts).