Figure 3

DD aftershock relocation. (a) Map view of the relocated aftershocks; we also show the profile traces of panel (b) where we report events in a 3 km wide buffer; in both panels, star represents the Mw 5.5 mainshock. (c) Daily earthquake rate (red line); in blue the daily average energy derived by Ml44. (d) The number of aftershocks/day as a function of the time elapsed from the mainshock: it is best fitted by a two-slope model (with a likelihood of 55%) than a single-slope Omori-like behavior (not shown). The slope of the first and second segments is indicated on top of the panel. (e) The Gutenberg and Richter aftershock distribution for Mc = 2 shows a b-value of 0.941 ± 0.044.