Using Shear Wave Travel Time Correction Surfaces to Improve Regional Seismic Location in China


Ground Truth Comparisons Using LANL S Picks



Figure 8 - Relocations of combined databases using only stations with P phase PPCs, all available P phases and only LANL S picks (41 events with LANL S picks). See Figure 6 for plot characteristics. Location results are similar to Figure 6 except that now the uncorrected S phases in the left figure still result in the mainshock locating near the surface rupture. 8 events failed to converge for the left figure, while only 7 events failed to converge for the right figure. Note the linear pattern of the relocations west of the mainshock in both figures.

Introduction | Generation of Propagation Path Correction (PPC) Surfaces | Ground Truth Comparisons
Ground Truth Comparisons Using LANL S Picks | Focal Mechanism Comparison | Conclusions and Future Work | References