Figure 4
From: Combining stress transfer and source directivity: the case of the 2012 Emilia seismic sequence
Geographical distribution of peak-dynamic strain.
Peak-dynamic strain field (microstrain) obtained by using the peak-ground velocity as a proxy (ε ≈ PGV/Vs). In each panel, the black and green stars indicate the triggering and target event, respectively. The red and orange arrows represent the dominant and the secondary rupture directions, respectively. Black rectangles represent the surface fault projections estimated through PGVs inversion (in some cases dimensions are very small and then dimly visible).
