Phase Data
20 FEB 2013 ( 51)
ot = 08:03:47.72 +/- 1.38 GUERRERO, MEXICO
lat = 16.768 +/- 19.4
lon = -98.601 +/- 17.4 MAGNITUDE 4.2 (GS)
dep = 38.3 +/- 14.9
129 km (80 miles) SE of Chilpancingo, Guerrero, Mexico (pop 166,000)
137 km (85 miles) E of Acapulco, Guerrero, Mexico (pop 616,000)
145 km (90 miles) SW of Huajuapan de Leon, Oaxaca, Mexico (pop 45,000)
299 km (186 miles) SSE of MEXICO CITY, D.F., Mexico
nph = 54 of 54 se = 0.68 FE=058 B
error ellipse = (197.0, 27.0, 32.7; 99.0, 15.0, 26.3;342.0, 57.0, 18.1)
mb = 4.2 ( 41) ML = 4.8 ( 2) mblg = 3.7 ( 4) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
UNM ePn 08:04:28.32 0.7 2.6 348 L:7.8+0 1.7 4.8 g:2.4+0 .80 4.6 UNM
LVIG ePn 08:04:42.09 1.1 3.6 35 g:2.8-1 1.0 3.8 LVIG
MOIG ePn 08:04:44.41 0.4 3.8 320 MOIG
TX31 ePn 08:06:54.57 -0.3 13.4 340 TX31
ePn 08:06:55.17 0.4
JCT ePn 08:07:00.28 0.8 13.7 356 JCT
WHTX ePn 08:07:22.12 2.6 15.2 4 b:1.7+1 .75 4.4 WHTX
MNTX ePn 08:07:30.60 -0.6 16.1 339 b:4.1+0 1.1 3.5 MNTX
GDL2 ePn 08:07:31.94 -1.1 16.2 342 GDL2
MSTX ePn 08:07:48.32 -1.1 17.5 348 b:1.3+1 .85 4.1 MSTX
AMTX eP 08:07:57.92 -0.1 18.3 352 b:1.0+1 .70 4.1 AMTX
W39A eP 08:08:04.92 0.4 18.8 12 b:1.2+1 .85 4.1 W39A
TUL1 eP 08:08:08.47 -0.2 19.2 7 b:1.5+1 .80 4.3 TUL1
ANMO eP 08:08:10.54 -0.4 19.4 340 b:3.7+0 1.1 3.5 ANMO
X16A eP 08:08:27.92 -0.3 21.0 329 b:1.1+1 .85 4.3 X16A
T25A eP 08:08:29.41 2.0 20.9 347 b:1.2+1 .90 4.3 T25A
WUAZ eP 08:08:39.09 1.6 21.9 331 b:1.8+1 1.0 4.4 WUAZ
MVCO eP 08:08:39.79 -0.8 22.2 339 b:9.9+0 .85 4.3 MVCO
S22A eP 08:08:40.42 0.2 22.1 343 b:5.2+0 1.0 3.9 S22A
PV13 eP 08:08:50.97 0.2 23.1 339 b:4.5+0 .92 3.9 PV13
PV03 eP 08:08:52.55 0.8 23.2 339 b:3.0+0 .92 3.8 PV03
SMCO eP 08:08:54.74 0.0 23.5 344 b:4.7+0 .95 4.0 SMCO
ISCO eP 08:08:56.70 -0.2 23.8 347 b:3.0+0 .80 3.9 ISCO
P42A eP 08:08:56.85 -0.6 23.8 16 b:1.6+1 .90 4.5 P42A
MTPU eP 08:09:02.23 0.0 24.3 333 b:7.4+0 .96 4.2 MTPU
SRU eP 08:09:03.58 -0.8 24.6 337 b:1.1+1 .86 4.4 SRU
Q16A eP 08:09:04.79 -0.3 24.7 336 b:8.1+0 .82 4.3 Q16A
MSU eP 08:09:06.72 1.0 24.7 334 MSU
epP 08:09:13.73 depth = -2.5
O20A eP 08:09:06.75 0.9 24.7 342 b:8.1+0 1.0 4.2 O20A
P17A eP 08:09:07.62 -0.3 25.0 337 b:6.6+0 .98 4.2 P17A
TMUT eP 08:09:08.44 0.1 25.0 336 b:5.2+0 .72 4.2 TMUT
HDIL eP 08:09:08.82 0.5 25.0 17 b:2.5+1 .95 4.8 HDIL
MPU eP 08:09:15.41 0.1 25.8 337 b:3.5+0 .86 4.0 MPU
NLU eP 08:09:16.75 0.3 25.9 336 b:3.4+0 .94 3.9 NLU
RWWY eP 08:09:17.07 0.5 25.9 345 b:6.9+0 1.1 4.1 RWWY
P51A eP 08:09:20.66 0.2 26.4 28 b:2.8+1 1.1 4.8 P51A
TCUT eP 08:09:23.28 0.0 26.7 338 b:7.6+0 .90 4.3 TCUT
PDAR eP 08:09:30.19 -1.1 27.5 342 PDAR
BW06 eP 08:09:30.82 -0.4 27.5 342 b:5.8+0 1.1 4.1 BW06
PD31 eP 08:09:31.12 -0.1 27.5 342 PD31
NV01 eP 08:09:31.82 -0.3 27.6 325 NV01
HVU eP 08:09:32.64 -0.3 27.7 337 b:3.4+0 .78 4.1 HVU
LOHW eP 08:09:41.01 0.1 28.6 342 b:4.7+0 .85 4.2 LOHW
FXWY eP 08:09:42.74 0.5 28.8 341 b:5.8+0 1.1 4.2 FXWY
MOOW eP 08:09:43.40 1.0 28.8 342 b:2.9+0 1.1 3.9 MOOW
RLMT eP 08:09:50.14 0.2 29.6 345 b:4.4+0 .75 4.3 RLMT
HLID eP 08:09:51.55 -0.5 29.9 337 b:2.8+0 1.1 3.9 HLID
BEKR eP 08:09:53.32 2.2 29.8 325 b:1.4+1 .94 4.7 BEKR
YHH epP 08:09:58.72 -3.0 29.8 342 YHH
DLMT eP 08:10:00.91 0.7 30.8 341 b:6.2+0 .95 4.4 DLMT
LRM eP 08:10:11.09 -1.1 32.2 342 LRM
F10A eP 08:10:18.72 -0.5 33.0 336 b:5.2+0 1.0 4.4 F10A
FFC eP 08:11:01.13 -0.5 38.0 357 b:9.9+0 1.1 4.6 FFC
Generated 2013 FEB 20 at 08:24 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
