Electronic Supplement to
Ground-Motion-to-Intensity Conversion Equations (GMICEs): A Global Relationship and Evaluation of Regional Dependency

by Marta Caprio, Bernadetta Tarigan, C. Bruce Worden, Stefan Wiemer, and David J. Wald

Table S1. Assignment of Regional Similarities for Atlas Peak Ground Acceleration Data

Atlas Nation	Number of Observations	Average Residual	Standard Deviation	Associated Region	Power t−Test%	AVG_CORR	SD_CORR
Australia	12	−0.77	1.09	Italy	12	−0.26	1.09
Mexico	1	−0.36	NA	Italy	NA	0.15	NA
Washington	59	0.05	0.72	Greece	8	0.05	0.72
Slovenia	3	0.31	0.45	California	10	−0.28	0.45
India	18	−0.11	1.14	Greece	6	−0.11	1.14
Japan	17	0.36	0.99	California	15	−0.23	0.99
Romania	3	−0.68	1.47	Italy	3	−0.17	1.47
New Zealand	5	−0.07	0.75	Greece	4	−0.07	0.75
Serbia	2	−1.95	0.46	Italy	27	−1.44	0.46
Algeria	5	1.04	0.56	California	27	0.44	0.56
Hawaii	8	1.36	0.92	California	53	0.77	0.92
China	1	−0.36	NA	Italy	NA	0.15	NA
Turkey	4	0.24	0.92	Greece	5	0.24	0.92
Peru	3	1.6	0.62	California	36	1.01	0.629
Iran	5	1.11	0.62	California	30	0.52	0.62
Armenia	1	−0.80	NA	Italy	NA	−0.29	NA

For each region in the Atlas dataset, we list the number of observations, average residuals, and standard deviation before and after (in the table labeled as AVG_CORR, and SD_CORR) the correction, the region associated, and the corresponding power of the t-test.

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