Phase Data
22 OCT 2011 (295)
ot = 05:24:37.31 +/- 1.40 TONGA
lat = -20.159 +/- 12.6
lon = -174.038 +/- 13.2 MAGNITUDE 4.7 (GS)
dep = 46.9 +/- 2.3
162 km (101 miles) NE of NUKU`ALOFA, Tonga
167 km (104 miles) S of Neiafu, Tonga
466 km (290 miles) S of Hihifo, Tonga
2147 km (1333 miles) NNE of Auckland, New Zealand
nph = 75 of 76 se = 0.69 FE=173 A
error ellipse = (305.0, 3.0, 21.2; 35.0, 9.0, 18.4;195.0, 79.0, 1.1)
mb = 4.7 ( 62) ML = 4.6 ( 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 05:26:04.73 -6.9 6.6 20 L:3.4-1 2.4 4.7 AFI
MSVF ePn 05:26:37.72 8.5 7.9 287 MSVF
RAR ee 05:27:29.70 0.0X 13.4 97 RAR
FUNA ePn 05:27:41.88 -1.5 13.3 330 FUNA
RAO eSn 05:28:35.61 -6.5 9.7 201 RAO
DZM eP 05:28:49.82 2.1 18.3 261 b:3.9+1 1.1 4.5 DZM
URZ eP 05:28:59.69 -1.9 19.6 201 b:5.8+1 1.0 4.8 URZ
BKZ eP 05:29:11.31 -1.5 20.6 201 b:1.3+2 1.9 4.9 BKZ
HIZ eP 05:29:15.63 2.4 20.7 205 b:6.7+1 .76 5.1 HIZ
BFZ eP 05:29:27.11 -1.2 22.1 200 b:2.9+1 .80 4.8 BFZ
SNZO eP 05:29:36.27 -3.4 23.2 202 b:2.7+2 1.9 5.4 SNZO
THZ eP 05:29:47.37 -2.3 24.2 204 b:2.1+2 1.9 5.3 THZ
KHZ eP 05:29:50.30 -2.2 24.5 203 b:1.9+1 .80 4.7 KHZ
LTZ eP 05:29:57.92 -1.9 25.3 204 b:2.0+1 .72 4.8 LTZ
OXZ eP 05:30:01.79 -2.9 25.9 204 b:3.9+1 .78 5.0 OXZ
RPZ eP 05:30:10.97 -0.2 26.6 205 b:1.9+1 .74 4.8 RPZ
FOZ eP 05:30:15.28 1.0 26.9 207 b:4.4+1 .78 5.1 FOZ
LBZ eP 05:30:20.83 1.6 27.5 205 b:3.5+1 1.3 4.8 LBZ
ODZ eP 05:30:24.57 2.0 27.9 204 b:1.3+2 1.8 5.3 ODZ
WKZ eP 05:30:29.25 2.5 28.3 206 b:3.9+1 1.0 5.0 WKZ
MLZ eP 05:30:38.15 4.2 29.1 206 b:2.2+1 1.0 4.8 MLZ
WHZ eP 05:30:40.34 2.1 29.6 206 b:5.1+1 1.4 5.0 WHZ
DCZ eP 05:30:42.08 3.9 29.6 207 b:7.0+1 1.6 5.1 DCZ
CAN eP 05:31:31.15 -1.2 35.8 237 b:8.6+0 .80 4.7 CAN
STKA eP 05:32:17.27 -1.1 41.3 244 b:1.6+0 .80 3.8 STKA
MANU eP 05:32:22.11 -0.3 41.8 291 b:1.3+2 1.3 5.5 MANU
BBOO eP 05:32:55.04 -1.4 46.0 244 b:1.2+1 .95 4.8 BBOO
AS31 eP 05:33:11.95 -1.7 48.2 256 b:1.9+0 .80 4.2 AS31
WB2 eP 05:33:13.08 -1.4 48.3 261 b:8.8+0 .75 4.9 WB2
WRAB eP 05:33:13.22 -1.2 48.3 261 b:1.2+1 1.0 4.9 WRAB
FORT eP 05:33:46.94 -1.5 52.8 246 b:1.6+2 .80 6.1 FORT
VNDA eP 05:34:28.87 -0.1 58.6 186 b:3.8+0 .90 4.5 VNDA
SBA eP 05:34:29.07 0.9 58.5 185 b:1.0+1 1.0 4.9 SBA
SOEI eP 05:34:41.47 0.2 60.2 270 b:4.1+1 1.0 5.5 SOEI
QSPA eP 05:35:42.72 -0.7 69.9 180 QSPA
MJB9 eP 05:35:57.64 0.1 72.2 321 b:2.7+0 .88 4.2 MJB9
MAJO eP 05:35:58.04 0.5 72.2 321 b:1.0+1 .85 4.8 MAJO
TPUB eP 05:36:25.67 0.3 77.0 301 b:4.8+1 .90 5.5 TPUB
WAKR eP 05:36:28.60 -0.3 77.6 41 b:4.1+0 .96 4.4 WAKR
PNTR eP 05:36:30.72 0.3 77.9 40 b:9.2+0 1.2 4.7 PNTR
PAHR eP 05:36:32.84 -0.3 78.4 40 b:7.6+0 1.4 4.5 PAHR
LDFC eP 05:36:32.97 0.0 78.3 46 b:9.1+0 1.0 4.7 LDFC
TPNV eP 05:36:34.47 -0.4 78.7 44 b:4.7+0 1.1 4.3 TPNV
Y14A eP 05:36:36.92 -0.5 79.2 48 Y14A
MOD eP 05:36:36.99 -0.7 79.2 38 b:9.3+0 1.6 4.5 MOD
SHPR eP 05:36:37.05 -0.4 79.2 45 b:3.0+0 .92 4.2 SHPR
TUC eP 05:36:41.13 -0.2 79.9 50 b:5.4+0 1.1 4.4 TUC
R11A eP 05:36:41.72 0.0 79.9 43 b:1.6+0 .90 4.0 R11A
WVOR eP 05:36:44.50 -0.2 80.5 38 b:7.2+0 1.3 4.4 WVOR
X16A eP 05:36:45.00 0.1 80.5 48 X16A
LCMT eP 05:36:46.00 0.2 80.7 45 b:3.6+0 .96 4.3 LCMT
CCUT eP 05:36:47.50 0.4 80.9 45 b:4.9+0 1.1 4.3 CCUT
U15A eP 05:36:47.72 0.1 81.0 46 U15A
KNB eP 05:36:47.72 0.4 81.0 45 b:8.8+0 1.3 4.5 KNB
SZCU eP 05:36:48.34 0.2 81.1 45 b:6.1+0 1.1 4.4 SZCU
WUAZ eP 05:36:48.51 0.3 81.2 47 b:3.3+0 1.0 4.2 WUAZ
MTPU eP 05:36:53.54 0.8 82.0 45 b:6.8+0 1.2 4.5 MTPU
MSU eP 05:36:54.40 0.4 82.2 44 MSU
TMUT eP 05:36:59.85 0.3 83.3 44 b:1.3+1 .40 5.3 TMUT
MNTX eP 05:37:00.80 0.1 83.6 53 b:8.2+0 1.5 4.6 MNTX
HVU eP 05:37:00.81 -0.4 83.7 41 b:2.4+0 .80 4.3 HVU
SRU eP 05:37:00.98 -0.2 83.6 45 b:4.8+0 .80 4.6 SRU
HLID eP 05:37:01.01 -0.3 83.7 39 b:6.7+0 1.2 4.6 HLID
TX31 eP 05:37:01.55 -0.4 83.8 56 TX31
P17A eP 05:37:01.84 0.4 83.7 44 b:5.9+0 .98 4.6 P17A
P18A eP 05:37:03.76 0.1 84.1 44 b:1.2+1 1.3 4.8 P18A
TCUT eP 05:37:04.01 0.2 84.2 43 b:1.6+1 .94 5.1 TCUT
ANMO eP 05:37:04.56 -0.2 84.3 50 b:1.7+1 1.9 4.8 ANMO
PV09 eP 05:37:04.65 0.2 84.3 46 PV09
PV01 eP 05:37:05.09 -0.2 84.4 46 PV01
LNIG eP 05:37:09.31 0.1 85.2 62 b:4.1+0 .70 4.7 LNIG
MCMT eP 05:37:09.72 0.1 85.3 39 MCMT
S22A eP 05:37:10.25 -0.2 85.4 47 b:1.9+1 1.8 5.0 S22A
SNOW eP 05:37:13.10 0.9 85.8 41 b:6.0+0 1.3 4.7 SNOW
MSTX eP 05:37:14.76 -1.0 86.6 52 b:6.6+0 .85 4.9 MSTX
CHTO eP 05:37:50.76 2.6 93.6 289 b:7.3+0 1.2 5.0 CHTO
Generated 2011 OCT 22 at 05:42 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
