Phase Data
28 SEP 2010 (271)
ot = 23:48:46.20 +/- 2.54 TONGA REGION
lat = -22.812 +/- 13.7
lon = -175.294 +/- 11.5 MAGNITUDE 5.2 (GS)
dep = 63.4 +/- 5.3
185 km (115 miles) S of NUKU`ALOFA, Tonga
425 km (265 miles) SE of Ndoi Island, Fiji
480 km (300 miles) SSW of Neiafu, Tonga
1830 km (1130 miles) NE of Auckland, New Zealand
nph = 34 of 34 se = 1.25 FE=174 A
error ellipse = (150.0, 12.0, 22.0; 55.0, 19.0, 18.0;270.0, 66.0, 2.1)
mb = 5.2 ( 19) ML = 5.3 ( 2) mblg = 0.0 ( 0) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
RAO ePn 23:50:23.80 0.1 6.8 200 L:1.2+0 .43 5.3 RAO
MSVF ePn 23:50:43.49 3.3 8.0 308 MSVF
HIZ ePn 23:52:46.41 -2.9 17.8 206 b:2.0+2 1.6 5.0 HIZ
THZ eP 23:53:28.42 0.4 21.3 205 b:1.1+2 1.9 4.9 THZ
OXZ eP 23:53:45.39 -0.2 23.0 204 b:1.1+2 1.6 5.0 OXZ
WKZ eP 23:54:07.54 -0.6 25.4 207 b:8.8+2 2.5 5.8 WKZ
WHZ eP 23:54:18.21 -1.7 26.8 207 b:7.8+2 2.7 5.8 WHZ
ARMA eP 23:54:52.99 -0.1 30.4 249 b:2.7+1 1.0 4.9 ARMA
CTAO eP 23:55:39.77 -0.1 35.8 267 b:1.0+1 .90 4.8 CTAO
BBOO eP 23:56:45.70 -0.6 43.8 246 b:1.3+2 2.0 5.4 BBOO
AS01 eP 23:57:06.19 -0.9 46.4 258 AS01
FORT eP 23:57:39.44 -0.4 50.7 248 b:2.1+1 .60 5.3 FORT
MBWA eP 23:58:45.00 -0.4 59.8 258 b:3.2+1 1.6 5.2 MBWA
QSPA eP 23:59:35.46 1.5 67.3 180 QSPA
MAW eP 00:00:52.06 2.5 80.2 199 b:1.6+0 1.0 3.9 MAW
NV01 eP 00:00:53.12 -1.3 81.0 42 NV01
CCUT eP 00:01:07.23 -0.9 83.6 45 b:2.8+1 2.2 4.9 CCUT
G08A eP 00:01:14.42 -0.1 85.0 36 b:7.1+0 1.2 4.6 G08A
SNAA eP 00:01:17.98 0.5 85.6 178 b:3.8+0 1.3 4.3 SNAA
TX31 eP 00:01:20.32 -0.8 86.2 56 TX31
TRF eP 00:01:29.05 -1.0 88.2 11 b:1.8+2 2.7 5.8 TRF
GSI eP 00:01:31.21 1.9 87.9 272 b:4.3+1 .70 5.7 GSI
DOT eP 00:01:36.25 -0.1 89.6 13 b:1.7+2 2.2 5.9 DOT
IL1 eP 00:01:37.04 -1.3 90.0 12 IL1
AK11 ePKPdf 00:08:19.12 0.9 146.3 332 AK11
KIEV ePKPdf 00:08:19.15 1.0 146.2 331 KIEV
MBAR ePKPdf 00:08:19.55 1.1 145.6 231 MBAR
BUR04ePKPbc 00:08:30.85 0.6 150.3 331 BUR0
BR231ePKPbc 00:08:31.24 -0.5 150.8 312 BR23
CLL ePKPbc 00:08:31.70 0.4 150.8 349 CLL
ANTO ePKPbc 00:08:32.61 1.0 150.8 312 ANTO
MORC ePKPbc 00:08:32.89 0.5 151.2 342 MORC
LTY eS 00:11:43.54 1.7 85.3 34 LTY
HRY eS 00:12:25.71 1.1 89.8 38 HRY
Generated 2010 SEP 29 at 02:15 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
