Phase Data
22 SEP 2011 (265)
ot = 00:49:59.62 +/- 2.70 TONGA REGION
lat = -17.289 +/- 13.1
lon = -172.246 +/- 14.2 MAGNITUDE 4.9 (GS)
dep = 36.4 +/- 7.6
218 km (136 miles) SE of Hihifo, Tonga
238 km (148 miles) NE of Neiafu, Tonga
526 km (327 miles) NE of NUKU`ALOFA, Tonga
2516 km (1562 miles) NE of Auckland, New Zealand
nph = 35 of 35 se = 1.33 FE=174 A
error ellipse = (126.0, 7.0, 23.7; 36.0, 0.0, 18.0;306.0, 82.0, 11.2)
mb = 4.9 ( 26) ML = 4.1 ( 2) mblg = 3.5 ( 2) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
AFI ePn 00:50:46.70 -3.4 3.4 8 L:8.5-1 1.3 4.1 g:1.3-1 .95 3.5 AFI
eSn 00:51:16.33 S res = -12.9
MSVF ePn 00:52:13.26 2.4 9.3 266 MSVF
RAR ePn 00:52:49.08 -4.7 12.4 110 RAR
URZ eP 00:54:58.84 -1.2 22.9 202 b:3.4+1 .78 4.9 URZ
BKZ eP 00:55:09.43 -0.7 23.9 202 b:4.0+1 1.5 4.7 BKZ
HIZ eP 00:55:12.60 1.9 24.0 206 b:1.2+2 1.4 5.2 HIZ
BFZ eP 00:55:21.84 -1.3 25.3 201 b:9.8+1 1.9 5.1 BFZ
WRAB eP 00:58:50.57 -4.0 50.5 258 b:1.7+1 1.1 5.0 WRAB
WB2 eP 00:58:50.90 -3.7 50.5 258 WB2
eP 00:58:51.47 -3.2
AS01 eP 00:58:51.65 -3.4 50.6 253 AS01
AS31 eP 00:58:52.95 -2.4 50.6 253 b:9.3+0 .60 5.0 AS31
SOEI eP 01:00:16.45 -0.1 62.0 268 b:6.5+1 1.4 5.6 SOEI
QSPA eP 01:01:23.50 -0.6 72.8 180 b:1.5+1 1.2 4.8 QSPA
X16A eP 01:01:52.11 1.0 77.4 48 b:1.4+1 2.0 4.6 X16A
KSM eP 01:01:57.40 -0.1 78.5 275 b:3.3+1 1.1 5.3 KSM
KS01 eP 01:01:57.59 1.5 78.3 315 KS01
TX31 eP 01:02:07.96 -1.6 80.7 56 TX31
eP 01:02:09.65 -0.1
MNTX eP 01:02:08.63 0.6 80.5 53 b:2.8+0 .65 4.4 MNTX
ANMO eP 01:02:12.58 0.6 81.2 49 b:5.8+0 1.4 4.4 ANMO
RND eP 01:02:18.94 0.9 82.5 10 b:1.3+1 1.2 4.9 RND
MCK eP 01:02:20.16 0.7 82.8 10 b:1.3+1 1.0 4.9 MCK
IMW eP 01:02:22.17 2.4 82.7 40 b:1.0+1 1.6 4.6 IMW
BOZ eP 01:02:23.20 0.9 83.2 38 b:8.9+0 1.6 4.6 BOZ
YHH eP 01:02:23.30 0.8 83.2 39 b:8.4+0 1.5 4.6 YHH
WRH eP 01:02:24.00 0.3 83.6 10 b:1.9+1 1.3 5.0 WRH
CCB eP 01:02:24.82 0.1 83.8 10 b:2.7+1 1.6 5.1 CCB
IL1 eP 01:02:25.59 -0.6 84.1 11 IL1
COLA eP 01:02:25.89 0.1 84.0 10 b:3.6+1 .30 6.0 COLA
MDM eP 01:02:26.04 0.1 84.0 10 b:1.4+1 1.1 5.0 MDM
ILB eP 01:02:26.25 0.1 84.1 11 ILB
DAWY eP 01:02:31.75 1.0 85.0 14 b:8.6+0 .95 4.9 DAWY
INK eP 01:02:53.55 -0.4 89.8 14 b:2.5+1 1.7 5.2 INK
Generated 2011 SEP 22 at 01:09 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
