Phase Data

Explanation of Parameters


     30 JAN 2013  ( 30)

     ot  = 13:25:32.58   +/-   0.54              SOUTHERN MID-ATLANTIC RIDGE     
     lat =     -52.199   +/-   11.6
     lon =      -5.403   +/-   10.6              MAGNITUDE 4.9 (GS)       
     dep =        10.0  (assigned)    

     634 km (394 miles) WNW of Bouvet Island
     2785 km (1730 miles) SW of Cape Town, South Africa

     nph =   15 of  15    se = 1.15    FE=410                            B   

     error ellipse = (147.7,  0.0, 16.2; 57.7,  0.0, 12.9;  0.0,  0.0,  0.0)

 mb = 4.9 (  9)  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 eP      13:29:50.34   0.2   18.6 251 b:7.5+1 .95 4.9                   HOPE
 SNAA eP      13:30:00.66   0.3   19.6 178 b:4.3+1 1.5 4.5                   SNAA
 BOSA eP      13:32:03.96  -1.7   32.8  56 b:5.3+2 .60 6.6X                  BOSA
 QSPA eP      13:32:50.20  -0.7   38.1 180 b:2.0+1 1.3 4.7                   QSPA
 TRQA eP      13:33:18.58   0.7   41.3 267 b:3.9+1 1.5 4.9                   TRQA
 LSZ  eP      13:33:53.08   1.0   45.5  48 b:3.1+1 1.7 5.0                   LSZ 
 CPUP eP      13:34:00.22   0.3   46.5 283 b:1.2+1 1.2 4.8                   CPUP
 BDFB eP      13:34:22.80  -1.6   49.6 301 b:4.6+1 1.6 5.2                   BDFB
 GO02 eP      13:35:03.26   0.2   54.8 274 b:3.6+1 1.7 5.1                   GO02
 LPAZ eP      13:35:43.89  -0.5   60.6 282 b:3.5+0 1.0 4.4                   LPAZ
 TOA0 eP      13:36:14.51  -0.5   65.4   8                                   TOA0
 HIA  ePKPdf  13:45:10.09  -0.4  145.9  73                                   HIA 
 INK  ePKPbc  13:45:22.96  -0.6  150.8 323                                   INK 
 TIXI ePKPab  13:45:38.75   2.6  152.1  29                                   TIXI
 IL1  ePKPab  13:45:56.70   0.7  156.7 318                                   IL1 



 Generated 2013 JAN 30 at 16:36 UTC

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