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Table 1. Time windows used for correlation analysis, the number of cluster events, and S-P times estimated from the Togi seismic station for E2, E3, E4, E5, E6, and E8. Parentheses denote the numbers of the members in the cluster when events whose cross-correlation coefficients were higher for other clusters are excluded. Note that the E2 cluster includes E1 while E7 and E9 belong to the E8 cluster.

From: Spatio-temporal occurrence patterns among the foreshocks preceding the 2007 Noto Hanto earthquake

ID Time window before P (s) Time window after P (s) N. of EQ S-P time (s) at Togi
E2 0.6 1.5 18 (16) 0.77
E3 0.8 2.5 2 1.11
E4 0.6 1.5 13 (12) 0.71
E5 1.0 3.5 1 1.95
E6 1.5 4.5 1 2.81
E8 0.8 2.5 4 1.30