Fig. 15

Example of \(\Delta CFF\) distributions caused by co-seismic slip of a source event. \(\Delta \mathrm{CFF}\) is calculated at a depth of 15 km for the plane that matches with one of the nodal planes of a dependent event. The coefficient of friction is a \({\mu }^{^{\prime}}=0.2\), b \({\mu }^{^{\prime}}=0.4\), and c \({\mu }^{^{\prime}}=0.6\). Red indicates a positive \(\Delta \mathrm{CFF}\) that promotes failure, while blue indicates negative ones. The white asterisks indicate the centroid of the source event whose magnitude and occurrence date are shown together. The red rectangles represent the fault plane for the source event and the green lines represent the traces of the seismic fault on the ground surface. Black dots represent the locations of dependent events with their magnitude and occurrence date