Phase Data
4 MAY 2011 (124)
ot = 16:26:26.24 +/- 0.51 CHIHUAHUA, MEXICO
lat = 30.691 +/- 5.7
lon = -105.799 +/- 4.2 MAGNITUDE 4.2 (GS)
dep = 10.0 (assigned)
68 km (42 miles) SW of Sierra Blanca, Texas (pop 900)
100 km (62 miles) WSW of Van Horn, Texas (pop 2,000)
135 km (84 miles) SSE of El Paso, Texas (pop 563,000)
775 km (481 miles) W of AUSTIN, Texas
ML 4.2 (GS).
nph = 26 of 35 se = 1.11 FE=518 A
error ellipse = (180.5, 0.0, 7.5; 90.5, 0.0, 5.5; 0.0, 0.0, 0.0)
mb = 0.0 ( 0) ML = 4.2 ( 9) mblg = 3.5 ( 20) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
GDL2 ePn 16:26:59.40 0.0 1.9 39 GDL2
CLNB ePn 16:27:04.17 0.2 2.3 46 CLNB
TX31 ePn 16:27:04.32 0.1 2.3 126 TX31
121A ePn 16:27:06.71 -0.4 2.5 318 d:3.1+2 5.1X L:1.0+0 .80 3.9 121A
eSg 16:27:44.32 S res = -2.2X g:9.1-1 .98 4.1
319A ePn 16:27:15.02 0.1 3.1 284 L:2.3+0 .73 4.6 g:3.3-1 .98 3.7 319A
BNM ePn 16:27:20.83 -0.4 3.5 349 BNM
LPM ePn 16:27:22.62 -0.8 3.7 349 LPM
LAZ ePn 16:27:23.80 -2.2 3.9 343 LAZ
HPIG ePn 16:27:25.23 0.9 3.7 178 L:2.7-1 .50 3.9 g:7.0-2 .75 3.2 HPIG
MSTX ePn 16:27:29.88 0.1 4.2 37 L:2.0+0 .73 4.9 g:1.7-1 1.0 3.5 MSTX
ANMO ePn 16:27:32.53 0.8 4.3 353 L:1.3-1 .95 3.8 g:5.0-2 .95 3.1 ANMO
TUC ePn 16:27:35.25 0.0 4.6 292 L:1.7-1 .68 4.0 g:1.0-1 .70 3.5 TUC
X18A ePn 16:27:43.79 -0.3 5.2 319 L:2.7-1 .60 4.3 g:8.0-2 .90 3.4 X18A
JCT ePn 16:27:44.05 0.2 5.2 91 L:1.1+0 1.2 4.9 g:4.3-1 1.0 4.1 JCT
ABTX ePn 16:27:48.58 -0.9 5.6 68 L:4.6-1 1.2 4.6X g:1.0-1 .80 3.6 ABTX
ePg 16:28:04.71 -8.6X
W18A ePn 16:27:49.75 1.1 5.5 324 d:4.5+1 4.6X L:2.1-1 1.2 4.3X W18A
eLg 16:29:36.84 g:4.0-2 .77 3.2
AMTX qPn 16:27:50.87 3.5X 5.4 39 d:1.7+2 5.7X L:2.5-1 .58 4.3X AMTX
g:1.5-1 .80 3.8 b:8.2+1 .53 5.6X
HSIG ePg 16:27:55.28 -2.4 4.8 251 L:2.1-1 .70 4.1 g:5.0-2 .70 3.3 HSIG
eSg 16:28:57.72 S res = -1.8X
X16A ePn 16:27:55.66 -0.2 6.0 309 L:4.0-2 .98 3.7X g:3.0-2 .95 3.1 X16A
214A ePn 16:27:57.96 1.0 6.1 284 d:2.3+2 6.2X L:3.1-1 .73 4.6X 214A
g:4.1-1 1.1 4.2 b:4.5+1 .58 5.4X
WUAZ ePn 16:28:01.26 -3.7X 6.7 317 L:1.5-1 .63 4.3X g:6.0-2 .98 3.5 WUAZ
ePg 16:28:20.14 -14.6X
MVCO ePn 16:28:05.98 -1.2 6.9 342 d:7.9+1 5.6X MVCO
Y14A ePn 16:28:07.98 0.4 6.9 300 L:2.6-1 .52 4.6X g:1.0-1 .73 3.8 Y14A
WMOK ePn 16:28:10.02 -1.0 7.2 54 L:1.9-1 1.1 4.5X g:6.0-2 .90 3.5 WMOK
113A ePn 16:28:11.22 1.1 7.1 289 L:5.0-2 1.9 3.9X g:4.0-2 1.1 3.2 113A
eSg 16:30:12.80 S res = -1.2X
SDCO ePn 16:28:12.37 2.7 7.0 2 d:2.5+2 6.6X L:3.2-2 .98 3.7X SDCO
g:2.8-2 .98 3.2 b:1.1+1 .70 5.1X
GLA ePn 16:28:23.79 0.8 8.0 289 L:9.0-2 .82 4.3X g:2.0-2 .75 3.2 GLA
eLg 16:30:43.97
PV04 ePn 16:28:24.37 0.3 8.1 342 PV04
Generated 2011 MAY 4 at 19:32 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
