Fig. 10
The fNL values for 29 stations versus the recorded a PGAs and b PGVs during the Wenchuan Earthquake. The data were separated into two groups based on different A max levels: A max < 5.0 and A max > 5.0. Linear fitting on a logarithmic scale was applied; the correlation coefficient R is given for each regression. c fNL versus V S30 and d fNL versus A max. The data were separated into three groups based on different PGA levels: PGA < 200 cm/s2, 200 < PGA < 400 cm/s2, and PGA > 400 cm/s2