Phase Data
8 MAY 2011 (128)
ot = 00:29:28.81 +/- 1.37 TONGA
lat = -16.920 +/- 15.0
lon = -174.020 +/- 8.3 MAGNITUDE 4.8 (GS)
dep = 67.1 +/- 8.9
111 km (69 miles) SSW of Hihifo, Tonga (pop 2,000)
191 km (119 miles) N of Neiafu, Tonga
482 km (299 miles) NNE of NUKU`ALOFA, Tonga
2469 km (1533 miles) NNE of Auckland, New Zealand
nph = 36 of 37 se = 0.68 FE=173 A
error ellipse = (152.0, 10.0, 26.5;289.0, 75.0, 13.1; 60.0, 9.0, 2.1)
mb = 4.8 ( 25) ML = 3.8 ( 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
AFI ePn 00:30:18.87 -4.7X 3.7 36 L:4.6-1 .08 4.0 AFI
RAO ePn 00:32:26.85 -0.8 12.8 196 RAO
XMAS eP 00:34:46.42 0.3 24.9 43 b:8.2+1 .95 5.2 XMAS
SNZO eP 00:34:56.73 -0.2 26.2 200 b:1.9+2 1.4 5.4 SNZO
HNR eP 00:34:58.90 -0.3 26.4 283 b:1.0+2 .95 5.4 HNR
PYZ eP 00:36:00.97 1.0 33.3 205 b:1.2+2 1.2 5.6 PYZ
TAOE eP 00:36:05.81 -0.2 33.9 81 b:2.9+2 1.6 5.9 TAOE
ARMA eP 00:36:07.04 0.0 34.1 241 b:4.5+1 1.6 5.1 ARMA
KKH eP 00:37:00.67 -0.1 40.4 27 KKH
POHA eP 00:37:03.00 -0.5 40.7 27 b:3.8+2 1.7 5.9 POHA
KIP eP 00:37:07.12 0.0 41.2 23 b:1.3+2 1.1 5.6 KIP
KEKH eP 00:37:07.18 0.7 41.1 20 b:4.2+2 1.5 6.0 KEKH
TAU eP 00:37:13.17 1.3 41.8 224 b:9.6+1 1.6 5.3 TAU
STKA eP 00:37:19.60 -0.4 42.8 241 b:3.7+0 1.2 4.1 STKA
MHA eP 00:37:55.43 0.0 47.3 320 MHA
AS01 eP 00:38:08.08 -1.4 49.0 253 AS01
AS31 eP 00:38:08.70 -1.1 49.1 253 b:3.7+0 .80 4.5 AS31
NV01 eP 00:41:08.90 0.6 75.9 42 NV01
NV11 eP 00:41:09.72 0.9 76.0 42 b:7.8+0 1.4 4.4 NV11
TT01 eP 00:41:36.14 1.3 80.8 8 TT01
TTA eP 00:41:36.28 1.2 80.8 8 b:1.3+1 1.4 4.6 TTA
HLID eP 00:41:36.46 -1.0 81.2 39 b:2.7+0 .95 4.2 HLID
TX31 eP 00:41:40.27 -1.3 81.9 56 TX31
TNA eP 00:41:42.44 -0.4 82.4 3 b:9.3+0 1.3 4.6 TNA
TRF eP 00:41:42.75 0.3 82.2 11 b:9.3+0 1.2 4.6 TRF
RND eP 00:41:43.47 0.0 82.4 11 b:4.6+0 .84 4.5 RND
MCK eP 00:41:45.13 0.2 82.7 11 b:7.9+0 .88 4.7 MCK
MCMT eP 00:41:46.32 0.3 82.8 39 MCMT
REDW eP 00:41:47.94 -0.5 83.3 41 b:8.2+0 1.4 4.5 REDW
MLY eP 00:41:49.44 0.0 83.6 10 b:6.5+0 1.2 4.5 MLY
WRH eP 00:41:49.97 0.9 83.6 11 b:9.7+0 1.0 4.7 WRH
CCB eP 00:41:50.44 0.3 83.8 11 b:8.4+0 1.1 4.7 CCB
BW06 eP 00:41:50.79 -0.4 83.8 42 BW06
MDM eP 00:41:51.50 0.2 84.0 11 b:7.1+0 1.1 4.6 MDM
IL1 eP 00:41:51.79 0.2 84.0 11 IL1
PD31 eP 00:41:51.87 0.7 83.8 42 PD31
COLD eP 00:42:00.51 0.5 85.7 9 b:4.7+0 1.2 4.4 COLD
Generated 2011 MAY 8 at 00:58 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
