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

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

Table S3. Performance Evaluation of the 2(tS–tP) Algorithm for Earthquakes with Mw ≥6 from 1985 to 2004 Recorded by at Least Two Seismic Sensors

Data from CMT Catalog Distance to Mexico City (km)* Data of Seismic Recording Station Performance of Algorithm 2(tS–tP)
Date (yyyy/mm/dd) Time (hh:mm:ss) Latitude (°) Longitude (°) Depth (km) ms Mw Region Stations Latitude (°) Longitude (°) Altitude (m) Elevation (m) (tS–tP) (s) (a) (m) m2(tS–tP) Warning
1985/09/19 13:18:25 17.91 −101.99 21.3 8.1 8.0 Michoacán 401 CALE 18.07 −102.75 10 40 3.29 6.14 3.22 M > 6.0 Public
ZACA 18.01 −102.18 40 57 10.47 7.8 4.9 M > 6.0
1985/09/21 01:37:32 17.57 −101.42 20.8 7.5 7.5 Guerrero 327 AZIH 17.61 −101.47 20 46 4.74 6.12 3.78 M > 6.0 Public
PAPN 17.33 −101.04 30 93 10.99 7.52 3.53 M > 6.0
1986/04/30 07:07:30 18.25 −102.92 20.7 7.0 6.9 Michoacán 437 CALE 18.07 −102.75 10 54 4.51 6.33 3.45 M > 6.0 Public
1989/04/25 14:29:06 16.83 −99.12 15.0 6.9 6.9 Guerrero 278 SMR2 16.77 −99.44 83 21 3.28 5.92 3.47 M > 6.0 Public
VIGA 16.76 −99.23 35 26 5.03 7.45 3.81 M > 6.0
1993/10/24 07:52:23 16.77 −98.61 21.8 6.6 6.6 Guerrero 285 COPL 16.61 −98.98 32 46 4.23 7.24 3.72 M > 6.0 Public
VIGA 16.76 −99.23 35 64 5.00 7.45 3.81 M > 6.0
1994/05/23 01:46:52 18.19 −100.2 69.6 0 6.2 Guerrero 211 COMD 18.12 −100.52 30 89 6.45 7.51 3.76 M > 6.0 Public
PETA 17.54 −101.27 30 144 12.09 6.47 2.3 M > 6.0
1994/12/10 16:17:45 18.18 −101.39 54.0 0 6.4 Guerrero 282 BALC 18.01 −101.22 2000 120 6.66 7.54 4.03 M > 6.0 Public
PETA 17.54 −101.27 30 100 8.71 7.28 3.42 M > 6.0
1995/09/14 14:04:41 16.73 −98.54 21.8 7.2 7.3 Guerrero 280 GR11 16.60 −98.82 28 41 2.12 6.37 4.43 M > 6.0 Public
GR10 16.64 −99.03 49 56 3.55 5.14 2.68 M > 6.0
1995/10/09 15:36:29 19.34 −104.8 15.0 7.3 8 Colima 561 MZ01 19.07 −104.34 10 51 6.81 8.19 5.7 M > 6.0 Public
1996/07/15 21:23:42 17.50 −101.12 22.4 6.5 6.6 Guerrero 278 PAPN 17.33 −101.04 30 35 3.45 7.39 4.68 M > 6.0 Public
PETA 17.54 −101.27 30 39 4.69 6.89 3.7 M > 6.0
1997/01/11 20:28:40 18.34 −102.58 40.0 6.9 7.1 Michoacán 419 CALE 18.07 −102.75 10 36 5.29 7.82 4.79 M > 6.0 Public
VILE 18.05 −102.19 81 73 9.16 6.85 3.12 M > 6.0
1997/05/22 07:51:00 18.76 −101.73 55.5 6 6.5 Guerrero 291 VILE 18.05 −102.19 81 116 10.21 5.97 1.8 M > 6.0 Public
UNIO 17.99 −101.81 56 104 10.54 6.31 2.61 M > 6.0
1999/06/15 20:42:13 18.44 −97.38 61.2 6.5 6.9 Puebla 229 CHFL 17.97 −97.87 1694 96 8.18 6.86 4.11 M > 6.0 Public
CSER 18.99 −97.38 2656 96 13.66 7.48 2.29 M > 6.0
1999/06/21 17:43:09 18.09 −101.62 48.0 5.8 6.3 Guerrero 297 UNIO 17.99 −101.81 56 83 6.3 6.65 3.31 M > 6.0 Public
PET2 17.54 −101.26 23 131 9.91 6.17 2.49 M > 6.0
1999/09/30 16:31:23 16.20 −96.96 46.8 7.5 7.4 Oaxaca 435 LANE 15.95 −97.19 23 68 5.43 7.67 4.72 M > 6.0 Public
TAMA 16.26 −96.58 1699 76 7.86 7.33 4.14 M > 6.0
2000/08/09 11:41:53 18.13 −102.39 33.0 6.5 6.5 Michoacán 392 CALE 18.07 −102.75 10 56 4.25 6.84 4 M > 6.0 Public
UNIO 17.99 −101.81 56 90 10.69 5.84 1.74 M > 5.5
2003/01/22 02:06:49 18.86 −103.9 26.0 7.6 7.5 Colima 550 MZ02 19.07 −104.34 10 48 7.03 7.83 4.72 M > 6.0 Public
2004/01/01 23:31:53 17.45 −101.4 15.0 5.7 6.0 Guerrero 315 GR01 17.30 −101.04 201 46 6.56 6.67 3.04 M > 6.0 Public
COYQ 17.38 −101.06 44 41 6.94 6.37 2.47 M > 6.0
2006/08/11 14:30:44 18.50 −101.06 57.8 6.1 6.0 Guerrero 238 CANA 18.57 −101.98 340 116 11.05 5.78 1.88 M > 6.0 Public
COMD 18.12 −100.52 306 95 11.94 5.85 1.82 M > 6.0
2007/04/13 05:42:26 17.37 −100.14 42.7 6 6.0 Guerrero 255 ATYC 17.21 −100.43 51 44 4.3 7.28 3.74 M > 6.0 Public
CA04 17.13 −100.35 28 42 4.45 8.04 4.01 M > 6.0
2010/06/30 07:22:33 16.47 −97.77 17.8 6.3 6.3 Oaxaca 353 HZ04 16.30 −97.91 348 27 2.67 7.55 4.74 M > 6.0 Public
JAMI 16.28 −97.82 481 24 3.21 7.42 4 M > 6.0
2011/12/11 01:47:28 17.89 −99.84 55.3 6.5 6.5 Guerrero 198 TNLP 18.10 −99.56 734 75 8.23 7.02 2.68 M > 6.0 Public
COMD 18.12 −100.52 306 88 10.39 7 3.07 M > 6.0
2012/03/20 18:02:55 16.60 −98.39 15.4 7.6 7.5 Guerrero 325 OX01 16.31 −98.44 42 38 2.84 7.49 5.17 M > 6.0 Public
SJLL 16.66 −98.50 46 40 5.79 8.76 5.44 M > 6.0
2012/04/02 17:36:46 16.58 −98.35 12.0 6 6.1 Guerrero 332 OX01 16.31 −98.44 42 19 2 6.99 4.79 M > 6.0 Public
SJLL 16.66 −98.50 46 35 4.45 7.3 4.24 M > 6.0
2012/04/11 22:55:17 18.10 −102.97 20.5 6.7 6.7 Michoacán 411 CALE 18.08 −102.75 10 26 4.34 6.18 3.28 M > 6.0 Public
MC03 18.09 −102.75 132 26 4.67 6.55 3.1 M > 6.0
2012/11/15 09:20:23 18.30 −100.48 52.7 6.1 6.1 Guerrero 188 COMD 18.12 −100.52 306 61 5.96 7.1 3.62 M > 6.0 Public
TEJU 18.90 −100.16 1340 83 11.33 6.12 1.72 M > 6.0
2013/04/22 01:16:35 18.05 −102.19 26.6 6 6.1 Michoacán 364 MC02 18.02 −102.50 47 47 4.95 7.68 3.01 M > 6.0 Public
GR18 17.99 −101.92 86 42 5.63 6.45 2.38 M > 6.0
2013/08/21 12:38:36 17.00 −99.54 23.3 62 6.2 Guerrero 277 GR08 16.78 −99.50 84 22 2.82 6.79 4.28 M > 6.0 Public
VIGA 16.76 99.23 30 40 4.6 6.3 4.14 M > 6.0
2014/04/18 14:27:36 17.55 −101.25 18.9 7.2 7.3 Guerrero 294 GR01 17.30 −101.04 181 28 2.5 8.17 5.96 M > 6.0 Public
GR13 17.50 −101.25 56 41 5.47 7.52 4.54 M > 6.0
2014/05/08 17:00:20 17.36 −100.74 21.3 6.4 6.5 Guerrero 291 GR02 17.22 −100.79 15 18 2.78 6.89 4.35 M > 6.0 Public
GR01 17.30 −101.04 181 37 4.38 6.96 3.47 M > 6.0
2014/05/10 07:36:05 17.31 −100.82 20.7 6 6.1 Guerrero 297 GR02 17.22 −100.79 15 23 3.04 6.8 3.28 M > 6.0 Public
GR01 17.30 −101.04 181 35 4.03 6.78 3.33 M > 6.0

CMT, centroid moment tensor.

*Earthquakes constrained to those with epicenters of less than 600 km from Mexico City.

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