GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 1.1 GNGTS 2023 Fig. 3 - Results of P and S velocities obtained after 10 iterations (location + tomography) in the four processed cases. A) Without inclusion of the residual analysis. B) Application of residual analysis at each iteration. C) Without inclusion of the residual analysis and considering known the origin time T0. D) Application of residual analysis at each iteration and considering known the origin time T0. E) RMS time residuals values computed at each iteration for the four processed cases. Earthquake True depth A) WITHOUT Residual analysis B) WITH Residual analysis C) WITHOUT Res. anal. (only T0) D) WITH Res. anal. and T0 1 -2.5 -1.488 -0.035 0.282 0.267 2 -7.5 -3.239 -1.122 -0.106 -0.166 3 -12.5 -4.710 -1.236 -0.071 -0.146 4 -17.5 -4.122 -0.868 -0.028 0.024 Tab. 1 - Differences of the four located events with respect to the true depth positions for the four considered cases.