Phase Data

Explanation of Parameters


     12 MAR 2013  ( 71)

     ot  = 07:52:11.89   +/-   0.75              SOUTH SANDWICH ISLANDS REGION   
     lat =     -55.428   +/-   13.5
     lon =     -27.789   +/-   12.3              MAGNITUDE 4.9 (GS)       
     dep =        22.7   +/-    6.4   

     146 km (91 miles) NNW of Visokoi Island, South Sandwich Islands (pop N/A)
     409 km (254 miles) NNW of Bristol Island, South Sandwich Islands
     575 km (357 miles) ESE of Grytviken, South Georgia
     3312 km (2057 miles) SE of BUENOS AIRES, D.F., Argentina

     nph =   28 of  29    se = 0.37    FE=153                            A   

     error ellipse = (187.0,  4.0, 20.9; 96.0,  6.0, 19.0;311.0, 82.0,  9.4)

 mb = 4.9 ( 26)  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
 HOPE ePn     07:53:26.97  -0.6    5.2 279                                   HOPE
 EFI  ePn     07:56:23.70  -0.2   18.3 269 b:2.3+1 .65 4.5                   EFI 
 SNAA eP      07:56:35.99  -0.5   19.4 156 b:1.6+1 .60 4.5                   SNAA
 PMSA eP      07:56:43.36   0.2   20.1 228 b:4.7+1 .80 4.9                   PMSA
 GO10 eP      07:57:34.38   0.2   25.0 257 b:6.0+1 1.0 5.2                   GO10
 PLCA eP      07:58:32.10  -0.3   31.6 280 b:2.6+0 1.0 4.1                   PLCA
 QSPA eP      07:59:00.52  -0.2   34.8 180 b:1.3+1 .60 5.0                   QSPA
 CPUP eP      07:59:12.15  -0.1   36.1 311 b:7.4+0 .95 4.6                   CPUP
 GO05 eP      07:59:12.68  -1.5   36.4 285 b:1.1+1 .70 4.8                   GO05
 PEL  eP      07:59:20.47   0.0   37.1 289 b:4.0+1 .70 5.3                   PEL 
 ROC1 eP      07:59:23.33   0.0   37.4 289 b:1.7+1 .70 5.0                   ROC1
 GO04 eP      07:59:40.75   0.1   39.5 292 b:1.4+1 .60 4.9                   GO04
 LCO  eP      07:59:47.68  -0.3   40.3 293 b:8.9+0 .90 4.5                   LCO 
 GO02 eP      08:00:09.37   0.4   42.9 297 b:3.2+1 .70 5.2                   GO02
 LVC  eP      08:00:24.21   0.8   44.7 300 b:1.9+1 .55 5.2                   LVC 
 BOSA eP      08:00:34.69   0.1   46.1  77                                   BOSA
 PB01 eP      08:00:36.30   0.5   46.3 301 b:3.1+1 .60 5.4                   PB01
 SBA  eP      08:00:39.09   1.1   46.7 184 b:1.2+1 1.1 4.8                   SBA 
 VNDA eP      08:00:42.19   0.3   47.2 183 b:7.4+0 .65 4.9                   VNDA
 PB11 eP      08:00:45.29   0.2   47.5 301 b:2.1+1 .70 5.3                   PB11
 MNMC eP      08:00:49.76   0.6   48.0 302 b:3.7+1 .70 5.5                   MNMC
 TSUM eP      08:01:02.01   0.0   49.7  62 b:3.7+0 .75 4.5                   TSUM
 LPAZ eP      08:01:03.70   0.7X  49.7 305 b:1.9+1 .75 5.2                   LPAZ
 DBIC eP      08:02:48.21   0.0   64.7  25 b:6.1+0 1.0 4.7                   DBIC
 OTAV eP      08:03:16.65   0.5   69.0 304 b:3.3+0 .75 4.6                   OTAV
 TOA0 eP      08:03:37.27  -0.4   72.7  30 b:6.3+0 .85 4.7                   TOA0
      eP      08:03:37.73   0.1 
 SDV  eP      08:03:41.63  -0.1   73.3 315 b:1.2+1 .95 4.9                   SDV 
 BKZ  eP      08:04:37.45  -0.3   83.5 199 b:4.8+0 1.1 4.6                   BKZ 



 Generated 2013 MAR 12 at 08:13 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver