Combining stress transfer and source directivity: the case of the 2012
Emilia seismic sequence
Authors
1Vincenzo
Convertito*, 2Flaminia Catalli and 3Antonio Emolo
*Corresponding author
e-mail: vincenzo.convertito@ov.ingv.it.
Figure S1
Figure S1: Maps of cumulative CFS
Each map represents the cumulative CFS field solved on the preferential
focal mechanism and at depth of each main event of Table 1. Cumulative
CFS is estimated considering the effect of all the previous events of which
locations and focal mechanisms are available3. For the events 2 and 7, for
which the fault plane solution is not available, CFS computation has been
done by using a mean value of the 22 known focal mechanisms3. On the
upper left-side corner of each map is reported the origin time of the target
event. Stars represent: the target main events (green); the last acting
source in time (red); all the sources considered until the triggering time
(yellow). Gray dots represent next seismicity.
Figure S2
Figure S2: Probability density functions
Marginal probability density functions of the percent unilateral rupture
parameter e and rupture direction  as inferred from the PGVs inversion
procedure20. The different colors correspond to the marginal Pdf for each
explored Mach number α, according to the legend in the bottom-right
panel. The α-value for the best model is also reported and the
corresponding Pdf is shown as thicker line. For each earthquake, the
dominant rupture direction corresponds to the absolute maximum of the
-Pdf for the best model, while the secondary maximum indentifies the
secondary rupture direction.