Phase Data
30 OCT 2011 (303)
ot = 01:44:26.89 +/- 1.23 TONGA
lat = -16.303 +/- 15.4
lon = -175.520 +/- 13.6 MAGNITUDE 4.4 (GS)
dep = 329.4 +/- 3.8
193 km (120 miles) WSW of Hihifo, Tonga
307 km (190 miles) NNW of Neiafu, Tonga
535 km (332 miles) N of NUKU`ALOFA, Tonga
2471 km (1534 miles) NNE of Auckland, New Zealand
nph = 81 of 81 se = 0.61 FE=173 A
error ellipse = (325.0, 1.0, 25.8; 55.0, 0.0, 17.9;173.0, 88.0, 5.7)
mb = 4.4 ( 73) ML = 4.3 ( 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 01:45:35.49 -2.8 4.3 57 L:3.5-1 .98 4.3 AFI
MSVF ePn 01:46:03.99 3.1 6.3 256 MSVF
FUNA ePn 01:46:37.08 0.7 9.3 326 FUNA
DZM eP 01:48:13.93 -0.9 18.0 249 b:6.2+1 1.5 4.8 DZM
URZ eP 01:48:59.62 -2.3 22.8 195 b:2.3+1 .58 4.7 URZ
BKZ eP 01:49:11.02 -0.2 23.8 196 b:7.7+0 .54 4.3 BKZ
BFZ eP 01:49:22.99 -1.5 25.3 195 b:8.5+1 1.4 4.9 BFZ
THZ eP 01:49:40.98 -0.9 27.3 199 b:1.2+1 .86 4.3 THZ
OXZ eP 01:49:53.58 -3.1 28.9 199 b:1.6+1 .62 4.6 OXZ
FOZ eP 01:50:01.14 -3.6 29.9 202 b:8.9+1 1.8 4.9 FOZ
MLZ eP 01:50:23.05 -0.9 32.1 202 b:7.0+1 1.4 4.9 MLZ
EIDS eP 01:50:26.13 -1.1 32.4 248 b:5.6+0 .50 4.2 EIDS
WHZ eP 01:50:28.77 0.5 32.6 202 b:4.3+1 .52 5.1 WHZ
ARMA eP 01:50:33.25 -0.1 33.1 239 b:2.4+1 .60 4.8 ARMA
CAN eP 01:51:04.60 -0.3 36.9 232 b:1.8+1 .70 4.6 CAN
COEN eP 01:51:29.76 -0.4 39.9 268 b:2.1+1 .85 4.4 COEN
STKA eP 01:51:45.55 0.0 41.8 240 b:3.0+0 .70 3.6 STKA
BBOO eP 01:52:21.66 -1.4 46.6 240 b:2.0+1 .50 4.6 BBOO
WB2 eP 01:52:29.96 -1.3 47.6 258 b:9.3+0 .65 4.2 WB2
AS31 eP 01:52:32.38 -0.8 47.9 253 b:1.8+1 .60 4.5 AS31
MTN eP 01:53:00.97 -0.2 51.6 266 b:1.6+1 .70 4.5 MTN
FORT eP 01:53:10.51 -1.8 53.2 244 b:1.8+2 .60 5.6 FORT
SOEI eP 01:53:54.35 1.9 58.8 268 b:4.0+1 .90 4.9 SOEI
MBWA eP 01:54:07.67 -0.1 61.1 255 b:2.4+1 .70 4.8 MBWA
VNDA eP 01:54:15.20 1.0 62.3 185 b:5.4+0 .95 4.1 VNDA
SBA eP 01:54:15.32 1.6 62.2 184 b:8.1+0 .85 4.3 SBA
CMB eP 01:55:31.74 0.0 74.8 42 b:4.7+0 1.1 4.1 CMB
AFDM eP 01:55:32.91 0.4 75.0 41 b:5.8+0 1.1 4.2 AFDM
PFO eP 01:55:33.89 0.6 75.0 48 b:5.0+0 1.1 4.2 PFO
XPFO eP 01:55:33.89 0.6 75.0 48 b:4.9+0 1.0 4.2 XPFO
KSM eP 01:55:34.21 -0.5 75.2 276 b:1.6+1 1.1 4.7 KSM
WAKR eP 01:55:36.17 -0.7 75.7 42 b:4.0+0 .80 4.2 WAKR
GSC eP 01:55:36.62 -0.2 75.7 46 b:1.1+1 1.4 4.4 GSC
YBH eP 01:55:36.72 0.7 75.6 38 b:4.4+0 1.0 4.1 YBH
PNTR eP 01:55:38.59 0.4 75.9 42 b:1.0+1 .88 4.6 PNTR
YERR eP 01:55:39.28 0.2 76.1 42 b:7.1+0 .98 4.4 YERR
LDFC eP 01:55:43.47 0.8 76.7 47 b:2.0+1 1.1 4.8 LDFC
TPNV eP 01:55:43.85 0.0 76.9 45 b:5.0+0 .85 4.3 TPNV
MOD eP 01:55:44.82 0.1 77.1 39 b:1.2+1 1.4 4.5 MOD
SHPR eP 01:55:47.16 0.4 77.5 46 b:3.1+0 .94 4.1 SHPR
BMN eP 01:55:50.88 0.3 78.2 42 b:4.5+0 .75 4.3 BMN
WVOR eP 01:55:52.07 0.2 78.4 39 b:6.9+0 1.0 4.4 WVOR
TUC eP 01:55:53.44 0.7 78.5 52 b:3.0+0 .80 4.2 TUC
J08A eP 01:55:55.25 0.1 79.0 39 b:1.1+1 1.2 4.6 J08A
U15A eP 01:55:58.22 0.7 79.4 47 U15A
BMO eP 01:56:03.15 -0.2 80.6 38 b:1.4+1 1.6 4.5 BMO
MFID eP 01:56:04.07 0.2 80.7 40 b:3.6+0 1.0 4.2 MFID
D08A eP 01:56:05.10 0.2 80.9 35 b:6.1+0 1.0 4.4 D08A
DUG eP 01:56:05.20 -0.1 80.9 44 b:4.1+0 1.2 4.1 DUG
HLID eP 01:56:09.17 0.2 81.6 40 b:3.7+0 .70 4.3 HLID
TMUT eP 01:56:09.57 0.8 81.6 45 b:7.5+0 .88 4.5 TMUT
HVU eP 01:56:09.69 0.1 81.7 42 b:3.7+0 .72 4.3 HVU
SPUT eP 01:56:10.07 0.6 81.7 43 b:8.9+0 1.3 4.4 SPUT
SRU eP 01:56:11.04 0.4 81.9 46 b:7.9+0 .92 4.5 SRU
JLU eP 01:56:11.70 0.6 82.0 44 b:4.7+0 .92 4.3 JLU
HWUT eP 01:56:12.91 -0.3 82.4 43 b:4.3+0 .85 4.3 HWUT
TCUT eP 01:56:12.95 0.4 82.3 43 b:5.6+1 .88 5.4 TCUT
MNTX eP 01:56:13.12 0.1 82.4 54 b:1.3+1 1.8 4.5 MNTX
PV05 eP 01:56:14.03 0.7 82.4 47 PV05
PV09 eP 01:56:14.54 0.3 82.6 47 PV09
PV01 eP 01:56:15.30 0.0 82.8 47 PV01
MLY eP 01:56:15.86 -0.8 83.3 10 b:8.5+0 1.0 4.5 MLY
ANMO eP 01:56:15.93 0.0 83.0 51 b:3.7+0 1.0 4.2 ANMO
WRH eP 01:56:16.00 -0.4 83.2 12 WRH
CCB eP 01:56:16.58 -0.9 83.4 12 b:9.7+0 .80 4.7 CCB
MCMT eP 01:56:17.07 -0.2 83.2 40 MCMT
MDM eP 01:56:17.92 -0.6 83.6 11 b:1.4+1 1.1 4.7 MDM
ILB eP 01:56:18.05 -0.9 83.7 12 ILB
REDW eP 01:56:19.64 -0.3 83.8 42 b:8.1+0 1.0 4.5 REDW
FXWY eP 01:56:20.29 0.3 83.8 41 b:3.2+0 1.0 4.1 FXWY
TPAW eP 01:56:20.30 0.4 83.8 42 b:5.7+0 .85 4.4 TPAW
SNOW eP 01:56:20.91 0.4 83.9 42 b:9.8+0 1.0 4.6 SNOW
IMW eP 01:56:21.01 0.0 84.0 41 b:6.8+0 .95 4.4 IMW
PD31 eP 01:56:22.12 -0.5 84.3 43 PD31
BOZ eP 01:56:22.65 -0.3 84.4 39 b:1.5+1 2.0 4.5 BOZ
YHB eP 01:56:23.10 0.9 84.2 40 b:6.0+0 .98 4.4 YHB
SMCO eP 01:56:23.34 -0.1 84.4 47 b:3.0+0 .75 4.2 SMCO
DAWY eP 01:56:24.45 0.0 84.8 15 DAWY
YHH eP 01:56:25.53 2.1 84.5 40 b:1.1+1 1.6 4.4 YHH
MAW eP 01:56:31.58 -0.1 86.3 199 b:2.1+0 .80 4.1 MAW
PSI eP 01:56:33.81 -0.1 86.5 274 PSI
Generated 2011 OCT 30 at 02:01 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
