Phase Data
19 MAY 2011 (139)
ot = 06:23:03.83 +/- 0.99 TONGA
lat = -18.978 +/- 14.7
lon = -174.516 +/- 11.2 MAGNITUDE 4.8 (GS)
dep = 35.0 +/- 3.1
67 km (41 miles) WSW of Neiafu, Tonga (pop 3,000)
249 km (155 miles) NNE of NUKU`ALOFA, Tonga
345 km (214 miles) SSW of Hihifo, Tonga
2241 km (1392 miles) NNE of Auckland, New Zealand
nph = 27 of 36 se = 0.49 FE=173 A
error ellipse = (143.0, 0.0, 28.2; 52.0, 48.0, 5.8;233.0, 41.0, 2.8)
mb = 4.8 ( 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 ee 06:25:00.73 0.0X 7.2 279 MSVF
RAR ePn 06:26:13.69 -6.5 14.0 102 RAR
URZ eP 06:27:39.45 0.1 20.5 199 b:2.1+1 .66 4.6 URZ
OXZ eP 06:28:40.26 -0.3 26.8 202 b:2.4+1 .88 4.8 OXZ
WB2 eP 06:31:39.96 -0.4 48.1 260 b:3.0+1 1.7 5.0 WB2
AS31 eP 06:31:40.05 -0.3 48.1 255 b:3.7+0 .55 4.6 AS31
WRAB eP 06:31:40.16 -0.1 48.1 260 b:1.2+1 1.3 4.8 WRAB
AS01 eP 06:31:40.57 0.6 48.0 255 AS01
MTN eP 06:32:13.37 -0.2 52.5 268 b:1.9+1 .80 5.1 MTN
SBA eP 06:33:05.97 2.2X 59.6 185 b:1.1+1 .85 5.0 SBA
VNDA eP 06:33:06.18 1.6 59.7 186 b:5.6+0 .85 4.7 VNDA
JHJ2 eP 06:34:05.34 7.5X 67.7 320 b:4.5+2 .30 7.0 JHJ2
TPUB eP 06:34:47.62 0.0 76.0 301 b:9.3+1 1.9 5.4 TPUB
NV01 eP 06:34:57.77 0.5 77.7 42 NV01
KS01 ePcP 06:35:03.84 -4.6X 78.0 317 KS01
TMUT eP 06:35:26.54 1.8 82.8 44 b:3.3+0 .94 4.4 TMUT
TX31 eP 06:35:27.54 -0.7 83.5 56 TX31
epP 06:35:50.80 depth = 12.0X
ANMO eP 06:35:30.82 0.2 83.9 50 b:3.4+0 1.1 4.4 ANMO
S22A eP 06:35:35.65 -0.4 85.0 48 b:6.2+0 1.4 4.6 S22A
SNOW eP 06:35:37.32 0.1 85.2 41 b:2.6+0 .75 4.5 SNOW
SMCO eP 06:35:38.31 -0.7 85.6 46 b:4.8+0 1.2 4.6 SMCO
WRH eP 06:35:38.78 0.4 85.7 11 b:5.8+0 .96 4.8 WRH
CCB eP 06:35:39.72 0.3 85.9 11 b:5.4+0 .60 4.9 CCB
BOZ eP 06:35:39.75 -0.4 85.9 39 b:1.4+0 .80 4.2 BOZ
COLA eP 06:35:40.63 0.3 86.1 11 b:9.7+0 .70 5.1 COLA
IL1 eP 06:35:40.77 -0.1 86.1 12 IL1
ILB eP 06:35:41.00 0.2 86.1 12 ILB
MSTX eP 06:35:41.88 0.0 86.2 52 b:6.2+0 .75 4.9 MSTX
DAWY eP 06:35:46.56 0.8 87.1 15 b:2.8+0 .80 4.6 DAWY
ABTX eP 06:35:51.01 0.4 88.0 55 ABTX
epP 06:36:08.50 depth = 7.2X
SNAA eP 06:35:56.10 -0.6 89.4 177 b:4.8+0 1.0 4.8 SNAA
PHWY epP 06:36:08.96 9.9X 87.6 45 PHWY
SAML ePdif 06:37:13.54 -3.1X 106.9 106 SAML
HNR eScS 06:39:32.74 2.1X 26.5 287 HNR
Generated 2011 MAY 19 at 07:15 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
