6 APR 2009 ( 96)
ot = 12:16:14.79 +/- 1.75 TONGA REGION
lat = -22.449 +/- 7.2
lon = -175.049 +/- 7.8 MAGNITUDE 5.9 (GS)
dep = 84.6 +/- 15.1
145 km (90 miles) S of NUKU'ALOFA, Tonga (pop 37,000)
425 km (265 miles) ESE of Ndoi Island, Fiji
435 km (270 miles) SSW of Neiafu, Tonga
1875 km (1160 miles) NE of Auckland, New Zealand
nph = 57 of 74 se = 1.08 FE=174 A
error ellipse = (267.9, 71.7, 24.1;148.0, 9.3, 12.0; 55.4, 15.6, 8.4)
mb = 5.3 ( 38) 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
MSVF ePn 12:18:09.93 1.5 8.0 305 g:5.0-2 1.1 3.4X MSVF
URZ ePn 12:20:07.73 -1.1 17.1 201 g:1.0-2 1.0 3.3X b:5.4+1 1.1 4.7 URZ
KHZ eP 12:21:03.30 0.5 22.1 203 b:7.8+1 1.1 5.0 KHZ
HNR eP 12:21:49.72 -1.5 27.2 294 HNR
ARMA eP 12:22:23.74 1.1 30.8 248 b:6.2+1 1.4 5.1 ARMA
EIDS eP 12:22:24.44 -0.4 31.1 258 b:7.0+1 1.4 5.2 EIDS
CAN eP 12:22:47.76 -1.1 33.8 240 b:3.2+1 1.2 5.1 CAN
CTAO eP 12:23:08.28 -0.3 36.1 266 b:1.0+2 1.4 5.6 CTAO
PMG eP 12:23:27.74 -1.0 38.5 284 PMG
STKA eP 12:23:37.61 0.5 39.5 247 b:1.1+1 1.4 4.6 STKA
COEN eP 12:23:46.06 0.7 40.5 275 COEN
BBOO eP 12:24:15.11 -0.5 44.2 246 b:1.3+3 1.5 6.5X BBOO
AS31 P 12:24:34.70 -1.4 46.8 258 AS31
WRAB P 12:24:36.56 -1.8 47.1 263 b:4.7+1 1.0 5.3 WRAB
FORT eP 12:25:08.14 -0.7 51.1 248 FORT
FITZ P 12:25:40.76 -0.7 55.5 263 b:5.7+1 1.0 5.5 FITZ
VNDA eP 12:25:47.11 1.3 56.2 186 VNDA
SBA eP 12:25:47.12 2.1 56.1 185 SBA
MBWA P 12:26:12.52 -1.3 60.1 258 b:2.7+1 .85 5.4 MBWA
QSPA P 12:27:02.32 -0.2 67.6 180 b:2.7+2 1.8 5.9 QSPA
JNU P 12:27:52.15 1.6 75.6 315 b:1.7+1 1.2 4.8 JNU
KSM P 12:27:56.36 0.8 76.4 277 b:4.2+1 1.0 5.3 KSM
TPUB P 12:27:59.26 -1.4 77.3 302 b:4.8+1 .90 5.4 TPUB
MWC P 12:28:05.17 -0.1 78.2 45 b:1.4+1 1.2 4.7 MWC
ISA P 12:28:06.59 -1.8 78.8 44 b:3.6+1 1.3 5.1 ISA
PFO P 12:28:09.07 0.0 78.9 47 b:2.1+1 1.4 4.8 PFO
WCN P 12:28:15.39 -1.2 80.3 40 b:3.5+1 1.4 5.1 WCN
YBH P 12:28:16.91 1.2 80.1 37 b:5.1+1 1.6 5.2 YBH
HUMO P 12:28:19.34 1.4 80.6 36 b:4.7+1 1.5 5.1 HUMO
INCN P 12:28:21.17 0.9 81.0 317 b:7.2+1 1.1 5.5 INCN
OHAK P 12:28:27.15 5.0X 81.4 12 b:7.4+1 1.4 5.4 OHAK
NLWA P 12:28:37.52 5.1X 83.4 32 b:5.1+1 1.5 5.2 NLWA
PMR P 12:28:45.37 -1.4 86.3 12 b:6.2+1 1.2 5.5 PMR
SNAA P 12:28:45.39 0.0 86.0 178 b:7.5+1 1.5 5.5 SNAA
HVU P 12:28:46.25 0.3 86.0 42 b:3.4+1 1.7 5.1 HVU
DAU P 12:28:47.51 0.4 86.2 43 b:5.6+1 2.0 5.3 DAU
IPM P 12:28:48.21 1.1 86.1 277 b:8.9+1 1.1 5.7 IPM
TNA P 12:28:54.60 0.2 87.9 3 b:5.5+1 1.5 5.4 TNA
MENT P 12:28:57.06 -1.0 88.6 14 MENT
PV01 e 12:28:58.07 8.5X 86.7 46 b:2.0+3 1.6 6.9X PV01
COLA P 12:29:00.74 -1.4 89.5 11 b:7.5+1 1.3 5.7 COLA
HRY e 12:29:07.76 5.9X 89.3 38 b:1.5+1 1.1 5.1 HRY
BILL P 12:29:09.93 -0.2 91.3 353 b:3.0+1 1.4 5.4 BILL
HKT P 12:29:13.93 -1.4 92.2 59 b:5.0+1 1.8 5.6 HKT
JTS P 12:29:22.36 -1.5 94.0 81 b:2.5+1 1.2 5.5 JTS
CHTO P 12:29:23.39 1.9 93.5 289 b:1.3+2 1.5 6.1 CHTO
CM31 P 12:29:23.65 2.7X 93.3 288 b:6.6+1 1.2 5.9 CM31
ECSD P 12:29:38.12 -0.3 97.3 46 b:6.8+1 1.7 5.9 ECSD
ULN P 12:29:45.73 1.3 98.6 318 b:2.2+1 1.4 5.5 ULN
MK31 P 12:30:55.82 0.8X 114.5 313 MK31
e 12:34:44.87 -0.1X
KURK P 12:34:49.74 -0.4 117.3 317 KURK
AAK P 12:34:55.76 0.6 119.7 307 AAK
EKS2 P 12:34:56.77 0.6 120.2 307 EKS2
KKAR P 12:35:00.37 -0.3 122.6 308 KKAR
KBL P 12:35:03.74 1.4 123.2 297 KBL
SUMG P 12:35:08.44 4.8X 124.4 15 SUMG
ARU P 12:35:11.66 0.5 128.4 325 ARU
ABKARP 12:35:14.35 1.0 129.4 316 ABKA
KMBO P 12:35:31.91 -4.1X 140.7 238 KMBO
SUW P 12:35:43.58 0.7 145.6 341 SUW
AK01 P 12:35:43.89 0.1 146.0 332 AK01
KIEV P 12:35:43.92 0.1 146.0 332 KIEV
AK02 P 12:35:44.30 0.5 146.1 332 AK02
MALT P 12:35:50.12 3.6X 147.3 307 MALT
KWP P 12:35:54.27 4.7X 149.5 337 KWP
BR131P 12:35:56.04 4.9X 150.2 312 BR13
BUR08P 12:35:56.92 6.2X 150.1 332 BUR0
MORC P 12:35:57.73 5.8X 151.0 343 MORC
KHC P 12:35:58.29 4.0X 152.5 348 KHC
PSZ P 12:36:01.49 8.0X 151.9 338 PSZ
BFO P 12:36:04.71 8.3X 154.0 355 BFO
TOA0 e 12:36:12.85 -1.1 170.2 161 TOA0
TAM P 12:36:17.54 1.2 179.4 303 TAM
Generated 2009 APR 6 at 12:42 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
