Phase Data
25 MAY 2011 (145)
ot = 11:55:37.44 +/- 1.78 TONGA
lat = -17.211 +/- 17.0
lon = -173.494 +/- 17.1 MAGNITUDE 4.6 (GS)
dep = 116.4 +/- 6.5
142 km (88 miles) S of Hihifo, Tonga (pop 2,000)
167 km (104 miles) NNE of Neiafu, Tonga
469 km (291 miles) NNE of NUKU`ALOFA, Tonga
2464 km (1530 miles) NNE of Auckland, New Zealand
nph = 75 of 77 se = 0.88 FE=173 A
error ellipse = (134.0, 6.0, 34.7; 39.0, 35.0, 15.6;232.0, 53.0, 1.5)
mb = 4.6 ( 1) 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 11:57:34.51 2.3 8.1 265 MSVF
URZ eP 12:00:26.74 -1.0 22.5 200 b:4.3+1 .58 5.0 URZ
BKZ eP 12:00:36.92 -0.4 23.6 200 b:1.6+1 .98 4.4 BKZ
LTZ eP 12:01:22.82 3.4 28.2 203 b:2.5+2 1.8 5.6 LTZ
OXZ eP 12:01:26.13 1.9 28.8 202 b:1.8+2 1.8 5.4 OXZ
CTAO eP 12:02:42.54 -3.4 38.2 259 b:7.7+0 .70 4.7 CTAO
STKA eP 12:03:26.55 0.5 43.1 242 b:1.4+0 .60 3.9 STKA
PMG esP 12:03:28.96 -3.1X 39.0 276 PMG
BBOO eP 12:04:02.99 -0.7 47.8 241 b:7.9+1 1.8 5.2 BBOO
WRAB eP 12:04:13.58 -1.8 49.3 258 b:1.2+1 .50 5.0 WRAB
WB2 eP 12:04:13.97 -1.4 49.3 258 b:1.4+1 .45 5.1 WB2
AS01 eP 12:04:15.02 -1.1 49.4 253 AS01
AS31 eP 12:04:15.21 -1.2 49.5 253 b:1.6+1 .45 5.2 AS31
NV01 eP 12:07:10.00 -0.6 75.7 42 NV01
LDFC eP 12:07:11.61 -0.1 75.9 46 b:1.6+1 1.2 4.7 LDFC
TPNV eP 12:07:13.37 0.0 76.2 44 b:6.9+0 1.2 4.3 TPNV
MOD eP 12:07:15.64 0.3 76.6 38 b:2.8+1 2.0 4.7 MOD
SHPR eP 12:07:16.46 0.3 76.7 45 b:6.3+0 1.3 4.3 SHPR
Y14A eP 12:07:16.72 0.0 76.8 48 Y14A
KSM eP 12:07:18.38 -1.2 77.3 276 b:2.1+1 1.1 4.8 KSM
R11A eP 12:07:20.00 -0.2 77.4 43 b:8.4+0 1.8 4.2 R11A
TUC eP 12:07:21.42 0.3 77.6 51 b:1.0+1 1.2 4.5 TUC
WVOR eP 12:07:21.50 -1.1 77.9 38 b:5.3+0 1.0 4.3 WVOR
KS01 eP 12:07:21.79 1.9 77.4 316 KS01
LCMT eP 12:07:22.07 -2.7 78.3 45 b:6.2+0 1.2 4.3 LCMT
X16A eP 12:07:24.92 0.5 78.2 48 X16A
WUAZ eP 12:07:25.02 -2.7 78.8 47 b:1.8+1 1.7 4.6 WUAZ
319A eP 12:07:25.22 0.3 78.3 52 b:8.2+0 .95 4.5 319A
ELK eP 12:07:26.45 -2.4 79.0 41 b:5.7+0 1.2 4.2 ELK
KNB eP 12:07:27.06 0.6 78.6 46 b:1.2+1 1.5 4.5 KNB
PSUT eP 12:07:27.34 0.3 78.7 44 b:3.8+0 .84 4.2 PSUT
U15A eP 12:07:27.42 0.5 78.6 46 U15A
HPIG eP 12:07:28.68 -0.8 79.1 57 b:8.8+0 1.2 4.4 HPIG
MTPU eP 12:07:32.43 0.5 79.5 45 b:1.8+1 1.4 4.7 MTPU
DUG eP 12:07:34.63 -0.8 80.2 43 b:1.1+1 1.5 4.4 DUG
HLID eP 12:07:38.28 -1.6 81.1 39 b:6.1+0 1.0 4.3 HLID
MNTX eP 12:07:38.59 -2.9 81.4 53 b:6.1+0 1.1 4.3 MNTX
TMUT eP 12:07:38.89 0.1 80.8 44 b:9.0+0 1.0 4.5 TMUT
SRU eP 12:07:40.55 0.0 81.2 45 b:6.3+0 1.0 4.3 SRU
TCUT eP 12:07:41.51 -1.5 81.6 43 b:5.0+1 1.7 5.0 TCUT
P17A eP 12:07:41.57 0.8 81.2 44 b:1.9+1 1.5 4.7 P17A
TX31 eP 12:07:43.27 0.1 81.7 56 TX31
eP 12:07:43.82 0.5
P18A eP 12:07:43.31 0.2 81.6 44 b:1.0+1 1.5 4.4 P18A
PV10 eP 12:07:43.68 -0.4 81.8 46 PV10
PV05 eP 12:07:43.97 0.9 81.6 46 PV05
PV09 eP 12:07:44.60 0.5 81.8 46 PV09
PV01 eP 12:07:45.22 0.1 82.0 46 PV01
ANMO eP 12:07:45.67 0.5 82.0 50 b:1.3+1 1.5 4.5 ANMO
DLMT eP 12:07:47.78 -2.9 83.2 38 b:7.8+0 1.2 4.5 DLMT
MCMT eP 12:07:48.72 0.2 82.7 39 MCMT
FLWY eP 12:07:49.47 -3.7 83.6 40 b:1.5+1 1.2 4.7 FLWY
LOHW eP 12:07:49.61 -2.7 83.4 41 b:4.9+0 1.1 4.3 LOHW
MOOW eP 12:07:49.65 -2.5 83.4 41 b:7.6+0 1.4 4.4 MOOW
DOT eP 12:07:50.31 -3.0 83.8 13 b:1.1+1 .92 4.7 DOT
REDW eP 12:07:50.55 -0.3 83.2 41 b:1.1+1 1.2 4.6 REDW
SNOW eP 12:07:50.58 -0.8 83.3 41 b:7.4+0 1.0 4.5 SNOW
S22A eP 12:07:51.12 0.6 83.1 47 b:1.0+1 .95 4.7 S22A
BW06 eP 12:07:51.88 -1.6 83.7 42 b:6.1+0 1.0 4.4 BW06
eP 12:07:52.39 -1.1
IMW eP 12:07:52.40 0.4 83.4 40 b:1.2+1 1.3 4.6 IMW
PD31 eP 12:07:52.97 -0.5 83.7 42 PD31
WRH eP 12:07:53.52 0.5 83.7 11 b:9.2+0 1.0 4.6 WRH
SMCO eP 12:07:53.68 0.1 83.6 46 b:6.0+0 1.0 4.4 SMCO
CCB eP 12:07:53.84 -0.2 84.0 11 b:1.2+1 1.3 4.6 CCB
BOZ eP 12:07:54.35 0.0 83.9 39 b:1.7+1 1.7 4.7 BOZ
IL1 eP 12:07:54.79 -0.7 84.2 11 IL1
COLA eP 12:07:55.07 0.0 84.2 11 b:1.4+1 1.3 4.7 COLA
MDM eP 12:07:55.16 0.0 84.2 11 b:9.7+0 1.2 4.6 MDM
SDCO eP 12:07:55.25 0.0 84.0 48 b:4.1+0 1.1 4.2 SDCO
YMR eP 12:07:55.44 1.5 83.8 40 b:2.4+1 1.6 4.8 YMR
LKWY eP 12:07:56.91 1.5 84.1 40 b:6.9+0 1.1 4.5 LKWY
MSTX eP 12:07:56.95 0.1X 84.3 52 b:1.5+1 1.0 4.8 MSTX
ABTX eP 12:08:06.01 0.0 86.2 54 b:1.5+1 1.0 4.9 ABTX
PSI eP 12:08:17.93 0.3 88.5 273 b:1.5+1 1.1 5.0 PSI
GSI eP 12:08:23.08 1.5 89.4 271 b:2.1+1 .80 5.3 GSI
CM01 eP 12:08:40.24 1.6 93.1 288 CM01
Generated 2011 MAY 25 at 12:15 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
