Electronic Supplement to
An Evaluation of the Applicability of Current Ground-Motion Models to the South and Central American Subduction Zones

by M.C. Arango , F.O. Strasser, J.J. Bommer, J.M. Cepeda, R. Boroschek, D.A. Hernandez, and H. Tavera

 

Summary Statistics for the Scherbaum et al. (2004) Scoring System

This electronic supplement contains four supplemental tables that present the full set results for the South and Central American datasets in terms of the goodness-of-fit measures, MEAN [Z_X], MED [Z_X], STD [Z_X] and MED [LH_X], where the subscript X reflects the component of variability considered (T=total, A=intra-event, E=inter-event), that have been used to assess the performance of subduction-zone models. These tables extend the ranking information for each selected GMPEs presented in the print edition of BSSA.

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Supplemental Tables

Table S1: Summary of the statistics derived from the South American interface dataset and ranking of the selected interface equations following the Scherbaum et al. (2004) scoring system. The results based on the normalised total (Z_T), intra-event (Z_A) and inter-event residuals (Z_E) and associated likelihood values (LH_T, LH_A, LH_E), are listed. The rankings for each interface equation are also presented in Table 3 of the paper.

Table S2: Summary of the statistics derived from the Central American interface dataset and ranking of the selected interface equations following the Scherbaum et al. (2004) scoring system. The results based on the normalised total (Z_T), intra-event (Z_A) and inter-event residuals (Z_E) and associated likelihood values (LH_T, LH_A, LH_E), are listed. The rankings for each interface equation are also presented in Table 3 of the paper.

Table S3: Summary of the statistics derived from the South American intraslab dataset and ranking of the selected intraslab equations following the Scherbaum et al. (2004) scoring system. The results based on the normalised total (Z_T), intra-event (Z_A) and inter-event residuals (Z_E) and associated likelihood values (LH_T, LH_A, LH_E), are listed. The rankings for each interface equation are also presented in Table 4 of the paper.

Table S4: Summary of the statistics derived from the Central American intraslab dataset and ranking of the selected intraslab equations following the Scherbaum et al. (2004) scoring system. The results based on the normalised total (Z_T), intra-event (Z_A) and inter-event residuals (Z_E) and associated likelihood values (LH_T, LH_A, LH_E), are listed. The rankings for each interface equation are also presented in Table 4 of the paper.

The following abbreviations are used in the tables: MEAN [Z_X]=mean of the normalised model residuals, MED [Z_X]=median normalised model residual, STD[Z_X]=standard deviation of the normalised model residuals, MED [LH_X]=median value of the likelihood function. The subscript indicates which types of residuals are considered: T=total, A=intra-event, and E=inter-event. The upper part of the table gives the overall ranking of the performance of each equation using the Scherbaum et al. (2004) scoring system: Rank A (high capability): MEAN [Z_X]<0.25, MED[Z_X]<0.25, STD[Z_X]<1.125 and MED[LH_X]>0.4; Rank B (intermediate capability): MEAN[Z_X]<0.50, MED[Z_X]<0.50, STD[Z_X]<1.250 and MED[LH_X]>0.3; Rank C (low capability): MEAN[Z_X]<0.75, MED[Z_X]<0.75, STD[Z_X]<1.50 and MED[LH_X]>0.2; Rank D (unacceptable capability): all other combinations of parameters.