11 APR 2009 (101)
ot = 03:48:12.69 +/- 0.19 TONGA
lat = -16.360 +/- 7.4
lon = -173.922 +/- 8.2 MAGNITUDE 4.5 (GS)
dep = 100.6 (depth phases)
50 km (30 miles) SSW of Hihifo, Tonga (pop 2,000)
255 km (155 miles) N of Neiafu, Tonga
545 km (340 miles) NNE of NUKU'ALOFA, Tonga
2535 km (1570 miles) NNE of Auckland, New Zealand
nph = 48 of 60 se = 0.72 FE=173 A
error ellipse = (131.1, 0.0, 13.6;221.1, 0.0, 5.1; 0.0, 0.0, 0.0)
mb = 4.4 ( 33) ML = 0.0 ( 0) 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 03:48:55.26 -5.9X 3.2 41 L:4.6+0 .95 4.9X AFI
MSVF ePn 03:50:12.43 8.9X 7.8 259 MSVF
RAR ePn 03:51:22.35 -7.4X 14.2 112 RAR
OUZ eP 03:52:56.05 -1.0 21.8 208 b:4.9+1 1.0 4.8 OUZ
URZ eP 03:53:08.75 -1.9 23.2 198 b:1.3+2 .56 5.5X URZ
KHZ eP 03:53:56.25 1.3 28.1 200 b:4.3+1 .80 5.1 KHZ
RPZ eP 03:54:13.51 0.8 30.1 202 b:3.6+1 1.0 5.0 RPZ
ARMA eP 03:54:50.99 0.2 34.4 240 b:1.5+1 .70 5.0 ARMA
STKA eP 03:56:03.45 0.1 43.1 241 b:3.7+0 .80 4.3 STKA
WRAB eP 03:56:50.55 0.0 49.1 258 b:2.6+0 .53 4.4 WRAB
AS31 eP 03:56:51.63 -0.6 49.3 253 AS31
FORT eP 03:57:29.52 -1.1 54.5 244 b:2.1+1 .68 5.3 FORT
VNDA eP 03:58:24.52 0.3 62.4 186 b:2.6+0 .80 4.3 VNDA
SBA eP 03:58:24.87 1.4 62.3 185 b:1.4+2 2.7 5.5X SBA
MBWA eP 03:58:26.31 -0.5 62.6 254 b:6.6+0 .62 4.8 MBWA
NV11 eP 03:59:45.84 -0.3 75.5 42 NV11
TUC eP 03:59:56.63 -0.4 77.4 51 b:2.7+0 .89 4.1 TUC
CCUT eP 04:00:01.89 0.5 78.2 45 b:6.2+0 1.1 4.3 CCUT
ELK eP 04:00:03.86 0.0 78.6 41 ELK
MSU eP 04:00:09.22 0.8 79.5 45 MSU
DUG eP 04:00:10.50 -0.2 79.9 43 b:6.4+0 1.4 4.3 DUG
TMUT eP 04:00:12.78 -1.4 80.5 44 b:6.8+0 .82 4.5 TMUT
HLID eP 04:00:14.73 -0.1 80.7 39 b:2.7+0 1.0 4.0 HLID
epP 04:00:40.31 depth = 97.5
SRU eP 04:00:16.07 0.1 80.9 45 b:1.4+2 .96 5.7X SRU
HWUT eP 04:00:18.06 -0.9 81.4 42 b:1.9+0 .79 4.0 HWUT
ANMO eP 04:00:20.72 -0.3 81.8 50 b:7.7-1 .63 3.7 ANMO
MCK eP 04:00:22.20 0.2 82.2 11 b:9.2+0 1.0 4.5 MCK
GDL2 eP 04:00:22.97 -0.1 82.2 53 b:1.0+1 1.0 4.6 GDL2
MCMT eP 04:00:23.27 -0.2 82.3 39 b:1.5+0 .98 3.8 MCMT
epP 04:00:50.50 depth = 104.3
RRI2 eP 04:00:24.18 -0.3 82.5 41 b:9.2+0 1.3 4.5 RRI2
epP 04:00:51.06 depth = 102.7
DLMT eP 04:00:25.19 -0.4 82.7 39 b:4.7+0 1.0 4.3 DLMT
BSMT eP 04:00:25.41 -0.7 82.8 36 BSMT
epP 04:00:52.90 depth = 105.3
TPAW eP 04:00:25.59 -0.5 82.8 41 b:4.6+0 .90 4.4 TPAW
SNOW eP 04:00:26.74 0.1 82.9 41 b:7.0+0 1.0 4.5 SNOW
IMW eP 04:00:27.35 0.2 83.0 40 b:6.4+0 1.0 4.5 IMW
epP 04:00:53.92 depth = 101.1
CHMT eP 04:00:27.44 -0.5 83.2 37 CHMT
epP 04:00:53.95 depth = 100.8
MOOW eP 04:00:27.66 0.3 83.0 41 b:1.9+0 1.0 4.0 MOOW
BW06 eP 04:00:27.80 -0.9 83.3 42 b:5.1+0 .87 4.5 BW06
COLA eP 04:00:28.45 0.2 83.4 11 b:4.5+0 .95 4.4 COLA
SMCO eP 04:00:29.09 0.0 83.3 46 b:5.9+0 1.1 4.4 SMCO
BOZ eP 04:00:29.35 0.0 83.5 39 b:4.5+0 1.0 4.3 BOZ
LKWY eP 04:00:31.98 1.4 83.7 40 b:6.4+0 1.0 4.5 LKWY
epP 04:00:56.59 depth = 92.5
PHWY eP 04:00:35.71 -3.3X 85.3 45 PHWY
RLMT eP 04:00:35.71 0.6 84.6 40 b:3.2+0 .95 4.2 RLMT
PLCA eP 04:01:00.10 2.3X 89.2 132 b:3.1+0 .89 4.4 PLCA
JTS eP 04:01:10.11 -0.2 91.9 80 b:1.3+1 1.4 5.0 JTS
BRVK ePKPdf 04:06:49.27 1.0 118.4 322 BRVK
MALT ePKPdf 04:07:37.11 -0.1 144.2 314 MALT
BUR08ePKPdf 04:07:39.30 0.9 145.0 337 BUR0
KMBO ePKPdf 04:07:39.31 0.3 144.7 243 KMBO
MORC ePKPbc 04:07:39.63 0.7 145.4 347 MORC
BR131ePKPbc 04:07:43.37 0.4 146.6 320 BR13
WLF ePKPbc 04:07:43.92 0.9 146.8 360 WLF
Generated 2009 APR 16 at 04:29 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
