Phase Data
28 SEP 2011 (271)
ot = 00:26:37.02 +/- 1.27 TONGA
lat = -15.567 +/- 10.7
lon = -173.173 +/- 13.9 MAGNITUDE 4.9 (GS)
dep = 15.4 +/- 3.9
75 km (46 miles) NE of Hihifo, Tonga (pop 2,000)
246 km (153 miles) SW of APIA, Samoa
652 km (405 miles) NNE of NUKU`ALOFA, Tonga
2643 km (1641 miles) NNE of Auckland, New Zealand
nph = 118 of 119 se = 0.62 FE=173 A
error ellipse = (118.0, 3.0, 22.8;209.0, 4.0, 14.2;350.0, 83.0, 5.6)
mb = 4.9 ( 93) ML = 5.2 ( 2) mblg = 5.1 ( 2) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
AFI ePn 00:27:10.89 -1.2 2.1 40 L:4.0+1 .65 5.3 g:8.6+0 .75 5.1 AFI
eSn 00:27:31.82 S res = -6.5
MSVF ePn 00:28:52.16 10.0X 8.7 254 MSVF
RAR ePn 00:29:49.66 -3.9 13.9 116 RAR
eSn 00:32:10.75 S res = -16.9
RAO ePn 00:29:56.00 -3.0 14.3 197 RAO
DZM eP 00:31:14.67 1.7 20.3 248 b:8.1+1 1.0 5.0 DZM
OUZ eP 00:31:39.56 -0.5 22.9 209 b:1.0+2 1.3 5.2 OUZ
MXZ eP 00:31:44.11 1.0 23.2 197 b:2.5+1 .74 4.8 MXZ
URZ eP 00:31:52.83 0.1 24.2 199 b:3.3+1 .70 5.0 URZ
HIZ eP 00:32:00.91 -0.9 25.2 203 b:1.5+2 1.5 5.4 HIZ
BKZ eP 00:32:01.26 -0.8 25.2 199 b:5.9+1 1.7 5.0 BKZ
BFZ eP 00:32:14.24 -1.0 26.7 198 b:1.3+2 1.8 5.3 BFZ
THZ eP 00:32:32.41 -1.5 28.7 202 b:4.2+1 1.3 5.0 THZ
KHZ eP 00:32:37.20 0.2 29.1 201 b:1.0+2 1.8 5.3 KHZ
LTZ eP 00:32:40.38 -3.5 29.9 202 b:8.9+1 1.8 5.3 LTZ
LHI eP 00:32:42.90 -1.2 29.9 233 b:3.1+2 1.5 5.9 LHI
MLZ eP 00:33:16.00 -0.9 33.6 204 b:9.9+1 1.4 5.5 MLZ
DCZ eP 00:33:19.97 -0.9 34.1 205 b:2.1+2 1.8 5.7 DCZ
WHZ eP 00:33:23.81 2.6 34.1 204 b:6.6+1 1.0 5.5 WHZ
ARMA eP 00:33:30.64 -2.3 35.4 239 b:1.2+1 .95 4.8 ARMA
COEN eP 00:34:30.22 0.6 42.2 266 b:2.3+1 .95 4.9 COEN
MIDW eP 00:34:41.24 -0.3 43.7 355 b:8.7+1 1.0 5.5 MIDW
STKA eP 00:34:44.45 -0.7 44.1 240 b:4.4+0 .80 4.4 STKA
BBOO eP 00:35:21.79 -0.9 48.9 240 b:2.2+1 .80 5.2 BBOO
WB2 eP 00:35:29.35 -1.8 50.0 257 WB2
eP 00:35:29.92 -1.3
AS01 eP 00:35:31.14 -1.7 50.2 252 AS01
AS31 eP 00:35:32.05 -1.1 50.3 252 b:6.8+0 .70 4.7 AS31
MTN eP 00:36:00.29 -0.2 53.9 265 b:5.1+1 1.7 5.3 MTN
SBA eP 00:37:05.17 1.8 63.1 185 b:3.5+1 1.8 5.2 SBA
VNDA eP 00:37:05.25 0.9 63.2 186 b:4.9+0 .90 4.7 VNDA
MWC eP 00:38:01.02 -0.1 72.1 46 b:1.2+1 .90 5.0 MWC
ISA eP 00:38:04.44 0.3 72.6 44 b:1.1+1 1.1 4.8 ISA
CMB eP 00:38:04.82 0.1 72.7 41 b:7.6+0 .95 4.7 CMB
PFO eP 00:38:05.59 -0.2 72.9 47 b:6.1+0 1.1 4.6 PFO
AFDM eP 00:38:05.78 0.0 72.9 40 b:8.9+0 1.1 4.7 AFDM
GSC eP 00:38:09.19 -0.4 73.6 45 b:1.7+1 1.2 4.9 GSC
YBH eP 00:38:10.47 0.7 73.6 37 b:1.4+1 1.2 4.9 YBH
WAKR eP 00:38:10.57 0.4 73.6 41 b:6.8+0 .98 4.7 WAKR
GLA eP 00:38:11.59 0.8 73.7 48 b:1.1+1 1.0 4.8 GLA
BEKR eP 00:38:11.67 0.2 73.9 40 b:8.0+0 1.0 4.7 BEKR
PNTR eP 00:38:12.32 0.7 73.9 41 b:1.7+1 1.0 5.0 PNTR
YERR eP 00:38:12.74 0.2 74.0 41 b:1.0+1 1.0 4.8 YERR
TVH1 eP 00:38:12.81 0.1 74.0 42 b:7.8+0 .98 4.7 TVH1
TVH2 eP 00:38:13.03 0.7 74.0 42 b:6.2+0 .56 4.8 TVH2
Y12C eP 00:38:14.22 0.2 74.3 48 b:1.1+1 1.2 4.8 Y12C
PAHR eP 00:38:14.64 0.2 74.4 40 b:9.4+0 1.1 4.7 PAHR
QSPA eP 00:38:14.67 0.0 74.5 180 b:1.9+1 1.3 5.0 QSPA
LDFC eP 00:38:15.82 0.1 74.6 46 b:1.6+1 .95 5.0 LDFC
TPNV eP 00:38:17.07 -0.1 74.8 44 b:6.3+0 .85 4.7 TPNV
MOD eP 00:38:18.62 -0.1 75.1 38 b:9.5+0 .95 4.8 MOD
SHPR eP 00:38:20.33 0.3 75.3 45 b:1.4+1 1.2 4.9 SHPR
K05A eP 00:38:20.37 0.7 75.3 37 b:2.5+1 1.1 5.2 K05A
W13A eP 00:38:21.05 0.1 75.5 47 b:6.6+0 1.0 4.6 W13A
Y14A eP 00:38:21.05 0.1 75.5 48 b:4.3+1 1.1 5.4 Y14A
R11A eP 00:38:24.02 -0.1 76.0 43 b:6.8+0 1.1 4.6 R11A
TUC eP 00:38:25.94 0.2 76.3 51 b:1.8+1 1.5 4.9 TUC
G06A eP 00:38:27.32 -1.7 77.0 35 b:2.2+1 .90 5.2 G06A
KS01 eP 00:38:27.54 1.3 76.5 315 KS01
LCMT eP 00:38:28.96 0.0 76.9 45 b:6.1+0 1.0 4.6 LCMT
X16A eP 00:38:29.30 0.4 76.9 48 b:9.6+0 .95 4.8 X16A
CCUT eP 00:38:29.76 -0.4 77.1 45 b:9.2+0 1.0 4.8 CCUT
319A eP 00:38:30.05 0.3 77.0 52 b:1.4+1 1.3 4.9 319A
KNB eP 00:38:31.21 0.6 77.2 46 b:3.8+1 1.8 5.2 KNB
U15A eP 00:38:31.77 0.6 77.3 46 b:1.1+1 1.0 4.8 U15A
SZCU eP 00:38:31.93 0.6 77.3 45 b:9.8+0 1.1 4.8 SZCU
WUAZ eP 00:38:32.55 0.4 77.5 48 b:1.0+1 1.2 4.8 WUAZ
PKCU eP 00:38:35.77 1.8 77.8 45 b:1.9+1 1.3 5.0 PKCU
BMO eP 00:38:38.17 -0.2 78.6 37 b:8.0+0 1.1 4.7 BMO
MSU eP 00:38:38.25 0.9 78.4 45 MSU
MFID eP 00:38:38.70 0.0 78.7 39 b:1.4+1 1.3 4.8 MFID
DUG eP 00:38:39.35 -0.3 78.8 43 b:9.4+0 1.2 4.7 DUG
F10A eP 00:38:41.80 -0.4 79.3 36 b:5.7+1 1.9 5.3 F10A
HLID eP 00:38:43.51 -0.4 79.6 39 b:1.1+1 1.0 4.8 HLID
TMUT eP 00:38:43.97 0.7 79.4 44 b:1.2+1 1.0 4.9 TMUT
SRU eP 00:38:45.40 0.3 79.8 45 b:1.1+1 1.2 4.8 SRU
LAZ eP 00:38:46.74 0.4 80.0 50 LAZ
MNTX eP 00:38:46.80 -0.1 80.2 53 b:2.4+1 1.9 4.9 MNTX
PV10 eP 00:38:48.53 -0.2 80.5 46 PV10
TX31 eP 00:38:48.60 -0.3 80.5 56 TX31
eP 00:38:49.00 0.0
PV05 eP 00:38:48.96 1.2 80.3 46 PV05
PV01 eP 00:38:49.81 0.0 80.7 46 PV01
ANMO eP 00:38:50.19 0.0 80.7 50 b:8.2+0 1.4 4.5 ANMO
MSO eP 00:38:54.17 -0.7 81.7 37 b:4.2+1 1.9 5.2 MSO
TPAW eP 00:38:55.44 0.1 81.7 41 b:7.1+0 1.0 4.7 TPAW
REDW eP 00:38:55.64 0.4 81.7 41 b:2.3+1 1.4 5.0 REDW
S22A eP 00:38:55.67 0.2 81.7 47 b:2.0+1 1.3 5.0 S22A
WRH eP 00:38:56.24 -0.1 82.1 11 b:3.2+1 1.4 5.2 WRH
IMW eP 00:38:56.67 0.2 81.9 40 b:1.5+1 1.3 4.9 IMW
DOT eP 00:38:56.93 0.3 82.1 13 b:1.4+1 .92 5.0 DOT
CCB eP 00:38:57.10 -0.3 82.3 11 b:5.6+1 1.8 5.3 CCB
SMCO eP 00:38:58.24 -0.2 82.3 46 b:1.8+1 1.3 5.0 SMCO
BOZ eP 00:38:59.22 0.5 82.4 39 b:2.0+1 1.5 5.0 BOZ
SDCO eP 00:38:59.22 -1.2 82.7 48 b:8.8+0 1.2 4.8 SDCO
IL1 eP 00:38:59.35 0.4 82.6 11 IL1
YHH eP 00:39:01.16 2.0 82.4 40 b:2.7+1 1.5 5.1 YHH
ISCO eP 00:39:04.55 -0.1 83.5 46 b:1.3+1 1.4 4.9 ISCO
Q24A eP 00:39:05.00 0.5 83.5 47 b:2.2+1 1.3 5.2 Q24A
N23A eP 00:39:06.25 0.3 83.8 45 b:5.3+1 1.9 5.4 N23A
AMTX eP 00:39:07.92 -0.6 84.3 52 b:1.7+1 1.1 5.2 AMTX
ABTX eP 00:39:11.09 -1.0 85.0 54 b:1.2+1 .85 5.1 ABTX
MAW eP 00:39:24.61 -0.2 87.7 199 b:3.0+0 1.1 4.5 MAW
LSZ ePKPdf 00:46:08.46 -2.5 142.8 215 LSZ
CLL ePKPdf 00:46:10.05 -1.8 144.0 353 CLL
BUR08ePKPdf 00:46:12.30 -0.9 144.6 338 BUR0
MLR ePKPdf 00:46:15.63 -0.3 146.1 336 MLR
KHC ePKPdf 00:46:16.30 0.7 146.1 352 KHC
GEA0 ePKPdf 00:46:16.50 0.4 146.4 352 GEA0
BR131ePKPdf 00:46:18.05 1.4 146.4 321 BR13
BR231ePKPdf 00:46:18.34 1.0 146.9 322 BR23
GEC2 ePKPdf 00:46:18.57 2.5 146.3 352 GEC2
ANTO ePKPdf 00:46:19.76 2.5 146.8 322 ANTO
BFO ePKPbc 00:46:20.34 0.4 147.3 358 BFO
FUORNePKPbc 00:46:25.20 0.6 148.9 355 FUOR
CSS ePKPbc 00:46:25.83 0.0 149.4 314 CSS
AKAS ePKPab 00:46:37.95 0.3 151.1 319 AKAS
COLA eS 00:49:15.04 0.9 82.5 11 COLA
Generated 2011 SEP 28 at 01:22 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
