Phase Data
26 SEP 2012 (270)
ot = 01:41:43.98 +/- 1.86 TONGA
lat = -21.214 +/- 12.1
lon = -174.271 +/- 9.3 MAGNITUDE 5.1 (GS)
dep = 42.7 +/- 6.5
97 km (60 miles) E of NUKU`ALOFA, Tonga (pop 37,000)
285 km (177 miles) S of Neiafu, Tonga
465 km (289 miles) E of Ndoi Island, Fiji
2033 km (1262 miles) NE of Auckland, New Zealand
nph = 207 of 209 se = 0.92 FE=173 A
error ellipse = (160.0, 3.0, 19.0; 69.0, 17.0, 13.8;262.0, 72.0, 9.4)
mb = 5.1 (172) 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
AFI ePn 01:43:26.33 -6.6 7.6 19 AFI
eSn 01:44:45.75 S res = -12.5
RAR ee 01:44:38.79 0.0X 13.5 93 RAR
ee 01:44:39.86 0.0X
eSn 01:46:49.84 S res = -32.4
DZM ePn 01:45:53.39 2.8 17.9 264 b:4.5+1 1.0 4.6 DZM
URZ eP 01:45:56.65 -0.4 18.5 202 b:6.2+1 .92 4.8 URZ
BKZ eP 01:46:05.37 -3.0 19.6 202 b:4.0+1 1.2 4.6 BKZ
HIZ eP 01:46:10.55 1.7 19.6 206 b:8.2+1 1.0 5.0 HIZ
BFZ eP 01:46:22.50 -1.4 21.0 200 b:5.1+1 1.0 4.8 BFZ
THZ eP 01:46:46.28 -0.7 23.2 205 b:8.7+1 1.3 5.1 THZ
KHZ eP 01:46:49.26 -0.7 23.5 203 b:4.5+1 .98 4.9 KHZ
LTZ eP 01:46:58.79 1.5 24.3 205 b:4.5+1 .90 5.0 LTZ
OXZ eP 01:47:01.41 -0.9 24.8 204 b:1.1+2 1.5 5.2 OXZ
RPZ eP 01:47:07.10 -1.7 25.5 205 b:8.1+1 1.3 5.1 RPZ
FOZ eP 01:47:13.44 1.5 25.9 207 b:1.7+2 1.0 5.6 FOZ
MLZ eP 01:47:33.01 1.2 28.1 207 b:4.2+1 1.0 5.0 MLZ
WHZ eP 01:47:37.90 1.8 28.6 206 b:4.4+1 1.1 5.0 WHZ
DCZ eP 01:47:39.52 3.4 28.6 208 b:7.5+1 1.1 5.3 DCZ
ARMA eP 01:48:05.77 -0.2 31.9 246 b:1.7+1 1.0 4.8 ARMA
CTAO eP 01:48:47.58 -1.2 36.9 265 b:2.5+1 1.3 4.9 CTAO
STKA eP 01:49:18.62 -1.5 40.6 245 b:4.7+0 1.1 4.2 STKA
COEN eP 01:49:24.94 0.8 41.1 273 b:2.8+1 1.2 4.9 COEN
AS01 eP 01:50:14.00 -2.9 47.7 257 AS01
AS31 eP 01:50:15.55 -1.6 47.8 257 b:1.2+1 1.0 4.8 AS31
WB2 eP 01:50:16.05 -2.6 47.9 262 WB2
eP 01:50:16.67 -2.0
WRAB eP 01:50:16.51 -2.1 47.9 262 b:5.8+1 1.3 5.4 WRAB
FORT eP 01:50:49.17 -1.8 52.2 247 b:4.3+1 .90 5.4 FORT
MTN eP 01:50:52.77 -1.6 52.6 270 b:2.9+1 1.4 5.1 MTN
FAKI eP 01:51:10.61 -1.3 55.1 282 b:6.8+1 1.4 5.5 FAKI
FITZ eP 01:51:20.38 -1.0 56.4 262 b:4.1+1 1.5 5.2 FITZ
SBA eP 01:51:29.13 1.3 57.4 185 b:2.6+1 1.5 5.1 SBA
VNDA eP 01:51:29.15 0.5 57.5 186 b:1.0+1 1.3 4.7 VNDA
SOEI eP 01:51:47.21 0.3 60.0 271 b:6.0+1 1.2 5.6 SOEI
MBWA eP 01:51:52.86 -1.3 61.1 257 b:5.1+1 1.3 5.5 MBWA
CASY eP 01:52:17.69 -0.4 64.8 206 b:2.1+1 .95 5.2 CASY
QSPA eP 01:52:43.49 -0.5 68.9 180 b:2.0+1 .95 5.1 QSPA
MAJO eP 01:53:09.43 0.7 72.9 322 b:4.0+1 1.3 5.2 MAJO
MJB9 eP 01:53:09.46 0.7 72.9 322 b:4.4+1 1.4 5.2 MJB9
SAO eP 01:53:28.69 0.8 76.2 41 b:2.5+1 .95 5.2 SAO
ePcP 01:53:45.68 5.9
PAGB eP 01:53:29.45 0.9 76.3 43 b:2.2+1 1.0 5.1 PAGB
MWC eP 01:53:31.74 0.2 76.8 45 b:1.6+1 1.0 5.0 MWC
ISA eP 01:53:34.87 0.1 77.4 44 b:2.0+1 1.1 5.1 ISA
ePcP 01:53:50.92 5.9
KMRM eP 01:53:34.91 1.7 77.1 37 b:5.4+1 .88 5.6 KMRM
PETK eP 01:53:35.20 -1.9 77.9 343 PETK
PFO eP 01:53:35.34 -0.1 77.5 46 b:9.4+0 1.0 4.8 PFO
XPFO eP 01:53:35.34 -0.1 77.5 46 b:9.4+0 1.0 4.8 XPFO
CMB eP 01:53:35.36 -0.8 77.7 41 b:1.5+1 .95 5.0 CMB
PEA0BeP 01:53:36.92 -0.1 77.9 343 b:4.3+1 1.2 5.3 PEA0
AFDM eP 01:53:37.11 -0.3 77.9 40 b:1.6+1 1.0 5.0 AFDM
YHNB eP 01:53:37.16 2.1 77.4 303 b:1.3+2 1.3 5.8 YHNB
WDC eP 01:53:38.17 0.0 78.1 38 b:2.4+1 1.1 5.1 WDC
GSC eP 01:53:39.69 0.1 78.3 45 b:1.2+1 1.0 4.8 GSC
OMMB eP 01:53:39.74 -0.1 78.3 42 b:2.4+1 1.2 5.1 OMMB
DAC eP 01:53:40.18 0.1 78.3 44 b:9.2+0 1.2 4.7 DAC
PMPB ePcP 01:53:40.22 0.1 76.3 42 PMPB
WAKR eP 01:53:40.92 -0.3 78.5 41 b:3.6+1 1.0 5.3 WAKR
YBH eP 01:53:42.29 0.3 78.7 37 b:2.7+1 1.0 5.2 YBH
PNTR eP 01:53:42.44 -0.3 78.8 40 b:4.1+1 .90 5.4 PNTR
VCNR eP 01:53:42.80 -0.4 78.9 40 b:2.1+1 .98 5.1 VCNR
113A eP 01:53:42.85 0.1 78.9 48 b:8.2+0 .95 4.7 113A
YERR eP 01:53:42.88 -0.7 79.0 41 b:2.5+1 .94 5.2 YERR
Y12C eP 01:53:43.29 0.3 78.9 47 b:1.2+1 1.0 4.8 Y12C
NV01 eP 01:53:43.55 -1.3 79.2 42 NV01
NV11 eP 01:53:44.55 -0.7 79.3 42 b:2.2+0 1.1 4.0 NV11
RYN eP 01:53:44.76 0.1 79.2 41 b:2.6+1 1.1 5.1 RYN
HUMO eP 01:53:44.94 0.6 79.2 36 b:3.0+1 1.2 5.1 HUMO
PAHR eP 01:53:45.27 -0.2 79.3 40 b:2.2+1 1.0 5.1 PAHR
KVN eP 01:53:46.67 -0.9 79.7 41 b:1.7+1 1.0 4.9 KVN
TPNV eP 01:53:47.42 0.4 79.6 44 b:1.5+1 1.0 4.9 TPNV
KS01 eP 01:53:47.69 -0.1 79.8 317 KS01
MOD eP 01:53:48.76 -1.3 80.2 38 b:2.0+1 .85 5.1 MOD
SHPR eP 01:53:48.98 -0.5 80.1 45 b:1.3+1 1.1 4.8 SHPR
K05A eP 01:53:50.77 -0.4 80.4 37 b:4.3+1 .95 5.4 K05A
H04A eP 01:53:53.05 -1.0 81.0 35 b:1.9+1 .90 5.1 H04A
TUC eP 01:53:53.36 0.4 80.7 50 b:1.1+1 1.0 4.8 TUC
R11A eP 01:53:53.82 0.1 80.9 43 b:6.5+0 1.2 4.5 R11A
PINE eP 01:53:54.29 -0.4 81.1 36 b:3.7+1 .90 5.3 PINE
WVOR eP 01:53:56.25 -0.7 81.5 38 b:1.7+1 1.0 5.0 WVOR
X16A eP 01:53:56.72 0.1 81.4 48 b:8.5+0 .95 4.7 X16A
LCMT eP 01:53:58.20 0.5 81.6 45 b:9.2+0 1.1 4.7 LCMT
MAW eP 01:53:59.41 0.0 82.1 199 b:3.4+0 1.2 4.2 MAW
U15A eP 01:53:59.72 0.2 81.9 46 b:1.4+1 1.0 4.9 U15A
J08A eP 01:53:59.80 -0.6 82.2 38 b:2.5+1 1.2 5.1 J08A
KNB eP 01:53:59.95 0.7 81.9 45 b:1.8+1 1.2 5.0 KNB
CCUT eP 01:53:59.98 1.0 81.8 45 b:5.8+0 .58 4.8 CCUT
G06A eP 01:54:00.10 -0.2 82.2 35 b:2.3+1 1.0 5.2 G06A
PSUT eP 01:54:00.20 0.0 82.1 44 b:6.5+0 1.1 4.6 PSUT
USA0BeP 01:54:00.45 3.4 81.6 324 b:3.6+1 1.4 5.2 USA0
WUAZ eP 01:54:00.50 0.5 82.0 47 b:1.1+1 1.1 4.8 WUAZ
NLWA eP 01:54:00.70 1.6 81.9 32 b:1.2+1 .90 4.9 NLWA
SZCU eP 01:54:00.91 0.9 82.0 45 b:1.5+1 1.2 4.9 SZCU
I07A eP 01:54:00.95 1.2 82.0 37 b:1.0+1 .95 4.8 I07A
epP 01:54:10.35 depth = -0.8
LON eP 01:54:01.48 -0.8 82.6 33 b:1.5+1 .85 5.1 LON
X18A eP 01:54:02.80 0.4 82.5 49 b:6.0+0 1.0 4.6 X18A
PKCU eP 01:54:03.81 1.4 82.5 45 b:4.2+1 1.4 5.3 PKCU
D05A eP 01:54:03.87 0.6 82.8 33 b:1.1+2 1.2 5.8 D05A
MTPU eP 01:54:03.88 -0.7 82.9 45 b:2.4+1 1.1 5.2 MTPU
G08A eP 01:54:04.60 -0.7 83.1 36 b:3.0+1 .95 5.3 G08A
PGC eP 01:54:05.45 0.9 83.0 31 PGC
F07A eP 01:54:05.60 1.2 83.0 35 b:2.6+1 1.1 5.2 F07A
MSU eP 01:54:06.10 0.3 83.1 44 MSU
MYKOMeP 01:54:06.66 0.9 83.1 275 b:8.2+1 1.3 5.6 MYKO
HAWA eP 01:54:06.86 -0.3 83.5 35 b:3.1+1 1.0 5.3 HAWA
BMO eP 01:54:07.50 -1.1 83.8 37 b:1.6+1 .95 5.1 BMO
DUG eP 01:54:08.12 -0.3 83.7 43 b:7.0+0 1.2 4.6 DUG
E07A eP 01:54:08.22 1.3 83.4 35 b:4.4+1 .95 5.5 E07A
epP 01:54:18.32 depth = 0.0
E08A eP 01:54:08.72 0.0 83.8 35 b:1.9+1 .90 5.2 E08A
BGU eP 01:54:09.74 -0.1 84.0 42 b:6.6+0 1.3 4.6 BGU
D08A eP 01:54:09.92 -1.1 84.3 35 b:3.9+1 .95 5.5 D08A
E09A eP 01:54:10.27 -1.1 84.3 35 b:2.4+1 1.0 5.3 E09A
NLU eP 01:54:10.49 0.3 84.0 43 b:9.3+0 1.3 4.7 NLU
MNTX eP 01:54:11.65 -0.3 84.4 53 b:7.8+0 1.0 4.8 MNTX
LENM eP 01:54:12.00 -0.3 84.4 50 LENM
TX31 eP 01:54:12.20 -0.6 84.5 56 TX31
eP 01:54:12.82 -0.2
epP 01:54:24.07 depth = -0.2
LAZ eP 01:54:12.24 -0.2 84.4 50 LAZ
TMUT eP 01:54:12.25 0.9 84.2 44 b:2.1+1 .96 5.2 TMUT
MPU eP 01:54:12.44 0.7 84.3 43 b:7.3+0 1.1 4.7 MPU
HLID eP 01:54:12.76 -0.5 84.6 39 b:1.3+1 .95 5.0 HLID
SPUT eP 01:54:12.89 0.1 84.5 42 b:1.7+1 1.4 5.0 SPUT
SRU eP 01:54:12.96 0.0 84.5 45 b:2.3+1 1.1 5.2 SRU
B08A eP 01:54:13.30 -0.8 84.9 33 b:1.9+1 1.0 5.2 B08A
HVU eP 01:54:13.39 0.3 84.6 41 b:9.4+0 .92 4.9 HVU
CTU eP 01:54:13.85 0.6 84.6 43 b:1.1+1 1.1 4.9 CTU
epP 01:54:24.63 depth = 0.1
BNM eP 01:54:13.89 0.3 84.7 51 BNM
SKT eP 01:54:13.92 0.1 84.9 11 b:3.2+1 1.1 5.4 SKT
JLU eP 01:54:13.97 -0.1 84.8 43 b:1.4+1 1.3 4.9 JLU
P17A eP 01:54:13.98 0.8 84.6 44 b:2.6+1 1.3 5.2 P17A
epP 01:54:25.15 depth = 0.7
ANMO eP 01:54:15.83 -0.3 85.2 50 b:1.5+1 1.0 5.1 ANMO
LLLB eP 01:54:15.97 0.8 85.1 31 b:2.1+1 1.0 5.3 LLLB
TCUT eP 01:54:16.13 0.5 85.1 43 b:3.2+1 1.0 5.4 TCUT
epP 01:54:26.02 depth = -0.8
P18A eP 01:54:16.14 0.8 85.0 44 b:1.2+1 1.2 4.9 P18A
PV11 eP 01:54:16.21 -0.1 85.2 46 b:2.4+1 1.4 5.2 PV11
PV14 eP 01:54:16.55 0.5 85.1 46 b:1.4+1 1.3 5.0 PV14
HWUT eP 01:54:16.56 0.2 85.3 42 b:1.4+1 1.4 4.9 HWUT
PV17 eP 01:54:16.61 0.7 85.1 46 b:2.1+1 1.3 5.1 PV17
PV18 eP 01:54:16.61 0.6 85.2 46 b:1.9+1 1.4 5.1 PV18
PV21 eP 01:54:16.69 0.0 85.3 46 b:1.4+1 1.3 5.0 PV21
PV13 eP 01:54:16.73 0.6 85.2 46 b:1.3+1 1.3 4.9 PV13
PV12 eP 01:54:16.74 0.1 85.3 46 b:2.1+1 1.4 5.1 PV12
epP 01:54:28.24 depth = 0.4
PV03 eP 01:54:16.76 0.5 85.2 46 PV03
PV19 eP 01:54:16.76 0.8 85.1 46 b:1.3+1 1.2 4.9 PV19
PV16 eP 01:54:16.76 0.6 85.2 46 b:1.8+1 1.4 5.0 PV16
PV20 eP 01:54:16.79 0.7 85.2 46 b:1.4+1 1.2 5.0 PV20
PV09 eP 01:54:16.90 0.9 85.1 46 PV09
PV01 eP 01:54:16.98 0.1 85.3 46 PV01
PV02 eP 01:54:17.19 0.6 85.3 46 b:9.9+0 1.2 4.9 PV02
GDL2 eP 01:54:17.44 0.4 85.4 53 GDL2
LNIG eP 01:54:17.88 -1.9 85.9 62 b:1.1+1 1.0 5.0 LNIG
PV22 eP 01:54:17.94 0.8 85.4 46 b:1.2+1 1.2 4.9 PV22
CAST eP 01:54:18.90 -1.2 86.1 10 b:2.0+1 .96 5.3 CAST
NEW eP 01:54:19.84 0.3 86.0 34 b:8.9+0 1.1 4.9 NEW
GO06 eP 01:54:19.97 -0.7 86.1 131 b:8.9+0 1.1 4.9 GO06
PLCA eP 01:54:20.87 -0.5 86.2 132 b:1.1+1 1.2 4.9 PLCA
AHID eP 01:54:21.50 0.5 86.2 41 b:8.8+0 1.0 4.9 AHID
KTH eP 01:54:21.68 0.0 86.5 10 b:3.2+1 1.0 5.5 KTH
MCMT eP 01:54:21.84 0.3 86.3 39 MCMT
TRF eP 01:54:21.99 0.1 86.5 11 b:5.2+1 .84 5.8 TRF
S22A eP 01:54:22.22 0.4 86.3 47 b:7.5+0 1.1 4.8 S22A
RND eP 01:54:22.36 -0.4 86.7 11 b:5.6+1 .88 5.8 RND
BPAW eP 01:54:23.10 -0.9 87.0 10 b:2.1+1 1.2 5.2 BPAW
REDW eP 01:54:23.35 0.0 86.7 41 REDW
epP 01:54:36.70 depth = 2.1
MCK eP 01:54:23.40 -0.7 87.0 11 b:6.1+1 .92 5.8 MCK
SNAA eP 01:54:23.66 -1.7 87.2 177 b:1.8+1 1.2 5.2 SNAA
PAX eP 01:54:23.78 -0.3 86.9 13 b:1.5+1 .92 5.2 PAX
DLMT eP 01:54:23.79 0.2 86.7 39 b:7.0+0 1.1 4.8 DLMT
FXWY eP 01:54:24.34 0.7 86.7 41 b:2.5+0 1.0 4.4 FXWY
PDAR eP 01:54:24.50 -1.2 87.1 42 PDAR
IPM eP 01:54:24.56 0.7 86.7 276 b:6.5+1 1.2 5.7 IPM
SMCO eP 01:54:24.73 -0.3 86.9 46 b:4.5+0 .95 4.7 SMCO
PD31 eP 01:54:24.97 -0.7 87.1 42 PD31
BW06 eP 01:54:24.99 -0.7 87.1 42 b:3.7+0 1.0 4.6 BW06
IMW eP 01:54:25.15 0.5 86.9 40 b:5.7+0 1.2 4.7 IMW
QLMT eP 01:54:26.15 0.6 87.1 39 QLMT
MSTX eP 01:54:26.50 -0.4 87.4 52 b:1.7+1 1.0 5.3 MSTX
BOZ eP 01:54:27.00 -0.1 87.5 39 b:9.3+0 1.3 4.9 BOZ
RIDG eP 01:54:27.14 -0.8 87.8 13 b:2.8+1 1.0 5.4 RIDG
WRH eP 01:54:27.98 0.0 87.8 11 b:7.8+1 1.1 5.8 WRH
CCB eP 01:54:28.08 -0.9 88.0 11 b:3.0+1 1.0 5.5 CCB
IL1 eP 01:54:28.79 -1.6 88.3 11 IL1
MDM eP 01:54:29.12 -0.9 88.2 11 b:7.2+1 1.4 5.7 MDM
HRY eP 01:54:29.41 0.1 87.9 38 HRY
IM3 eP 01:54:29.79 -0.7 88.3 8 IM3
COLA eP 01:54:29.98 0.1 88.2 11 b:3.1+1 1.0 5.5 COLA
ILB eP 01:54:30.05 -0.3 88.3 11 ILB
WALA eP 01:54:30.64 0.4 88.1 35 b:1.4+1 1.1 5.1 WALA
DAWY eP 01:54:34.97 0.1 89.2 15 b:1.9+1 .95 5.4 DAWY
GSI eP 01:54:35.91 2.1 88.7 272 b:6.8+1 1.0 5.9 GSI
EGAK eP 01:54:36.22 -0.1 89.4 14 b:2.2+1 .95 5.4 EGAK
COLD eP 01:54:39.22 0.9 90.0 9 b:8.0+0 .96 5.0 COLD
LCO eP 01:54:44.22 -0.4 91.0 122 b:2.2+1 1.4 5.4 LCO
DGMT eP 01:54:55.06 1.1 93.3 39 b:2.1+1 .85 5.6 DGMT
INK eP 01:54:57.04 -0.2 94.1 14 b:7.3+0 .85 5.1 INK
CM01 eP 01:54:57.69 1.4 93.6 288 CM01
CHTO eP 01:54:58.76 1.8 93.8 289 b:2.5+1 1.3 5.5 CHTO
ECSD eP 01:55:06.04 -0.2 95.9 46 b:1.1+1 1.1 5.3 ECSD
epP 01:55:16.72 depth = -1.2
Generated 2012 SEP 26 at 01:58 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
