Electronic Supplement to
Performance Evaluation of the Earthquake Detection and Classification Algorithm 2(t_S–t_P) of the Seismic Alert System of Mexico (SASMEX)

by Armando Cuéllar, Gerardo Suárez, and J. M. Espinosa-Aranda

Table S5. Performance Evaluation of the 2(t_S–t_P) Algorithm for the 11 March 2011 M_w 9.0 Tohoku, Japan, Earthquake

Strong-Motion Stations in Japan					Performance of SASMEX Algorithm 2(tS–tP)
Name of FS	Station Name	Latitude (°)	Longitude (°)	Elevation (m)	Epicentral Distance (km)	tS–tP (s)	a	m	Estimated m2(tS–tP)
MYG011	OSHIKA	38.3052	141.5044	13	100	19.77	8.75	4.75	>6.0
MYG002	UTATSU	38.7262	141.5109	79	109	18.69	8.66	5.61	>6.0
MYG008	KITAKAMI	38.5676	141.4266	26	112	24.61	8.22	4.06	>6.0
MYGH12	SHIZUGAWA	38.6416	141.4428	18	113	22.44	8.40	4.21	>6.0
OURI	OURI	38.4573	141.3453	50	118	21.43	8.24	4.19	>6.0

SASMEX, Seismic Alert System of Mexico; FS, field sensor.

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