Phase Data
12 MAY 2012 (133)
ot = 14:34:42.02 +/- 2.12 TONGA REGION
lat = -23.752 +/- 15.9
lon = -175.771 +/- 17.1 MAGNITUDE 4.8 (GS)
dep = 10.0 +/- 1.9
296 km (184 miles) SSW of NUKU`ALOFA, Tonga
457 km (284 miles) SE of Ndoi Island, Fiji
594 km (369 miles) SSW of Neiafu, Tonga
1712 km (1063 miles) NE of Auckland, New Zealand
nph = 27 of 31 se = 1.05 FE=174 A
error ellipse = (127.0, 0.0, 28.7; 37.0, 0.0, 21.8;288.0, 89.0, 2.9)
mb = 4.8 ( 23) 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
RAO ePn 14:36:13.90 5.8X 5.8 199 RAO
MSVF ePn 14:36:48.05 5.3X 8.3 315 MSVF
AFI ee 14:37:02.84 0.0X 10.5 22 AFI
URZ ePn 14:38:18.90 -4.2X 15.7 201 b:9.8+0 .84 4.1 URZ
BKZ ePn 14:38:34.71 -1.6 16.7 201 b:2.7+1 1.4 4.2 BKZ
BFZ ePn 14:38:53.32 -1.0 18.2 200 b:5.0+1 1.0 4.6 BFZ
THZ eP 14:39:16.25 -1.8 20.3 205 b:2.2+1 1.0 4.4 THZ
KHZ eP 14:39:20.47 -1.0 20.6 203 b:3.7+1 .88 4.7 KHZ
FOZ eP 14:39:47.62 0.4 23.0 208 b:8.0+1 1.2 5.1 FOZ
EIDS eP 14:40:54.11 1.7 30.1 260 b:6.3+0 .65 4.6 EIDS
CTAO eP 14:41:38.62 0.7 35.3 268 b:2.7+1 .95 5.1 CTAO
STKA eP 14:42:04.23 0.7 38.4 248 b:1.2+0 .70 3.7 STKA
AS01 eP 14:43:04.59 0.0 45.8 259 AS01
WB2 eP 14:43:06.49 -1.5 46.3 265 b:1.5+1 .90 5.1 WB2
WRAB eP 14:43:08.61 0.6 46.3 265 b:1.5+1 .95 5.0 WRAB
FORT eP 14:43:37.32 0.7 50.0 249 b:5.6+2 .75 6.6 FORT
MTN eP 14:43:45.93 -0.9 51.3 272 b:8.1+0 .60 4.8 MTN
FITZ eP 14:44:11.63 -0.2 54.7 264 b:1.2+1 1.1 4.8 FITZ
MBWA eP 14:44:43.58 -0.2 59.2 259 b:1.1+1 .80 5.1 MBWA
QSPA eP 14:45:35.78 5.1 66.3 180 b:2.4+1 .95 5.4 QSPA
JHUM eP 14:46:44.95 -0.6 78.9 41 JHUM
PETK eP 14:46:50.22 -0.7 79.9 344 PETK
ISA eP 14:46:53.39 0.7 80.2 44 b:7.5+0 1.0 4.6 ISA
KS01 eP 14:46:55.94 0.5 80.7 318 KS01
X16A eP 14:47:11.47 -2.0 84.1 49 b:8.7+0 1.1 4.9 X16A
WVOR eP 14:47:14.39 0.0 84.3 39 b:5.0+0 .90 4.8 WVOR
LCMT eP 14:47:14.50 -0.2 84.4 46 b:6.3+0 .90 4.8 LCMT
CCUT eP 14:47:16.24 0.2 84.6 45 b:7.1+0 .92 4.9 CCUT
U15A eP 14:47:17.12 0.7 84.7 47 b:1.3+1 1.0 5.1 U15A
WUAZ eP 14:47:17.80 1.0 84.8 48 b:2.5+1 1.5 5.2 WUAZ
IM3 eP 14:47:45.44 -0.4 91.0 9 IM3
Generated 2012 MAY 12 at 14:58 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
