Phase Data

Explanation of Parameters


      3 FEB 2011  ( 34)

     ot  = 18:32:49.25   +/-   1.49              SOUTH ISLAND OF NEW ZEALAND     
     lat =     -43.176   +/-    5.4
     lon =     171.903   +/-    6.4              MAGNITUDE 4.5 (WEL)      
     dep =        10.3   +/-    3.3   

     75 km (45 miles) WNW of Christchurch, New Zealand (pop 367,000)
     160 km (100 miles) S of Westport, New Zealand (pop 11,000)
     315 km (195 miles) SW of WELLINGTON, New Zealand
     320 km (200 miles) NNE of Dunedin, New Zealand

     nph =   22 of  23    se = 0.73    FE=162                            A   

     error ellipse = (130.0,  3.0, 12.8;326.0, 86.0,  5.0;220.0,  0.0,  1.4)

 mb = 0.0 (  0)  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
 OXZ  ePg     18:32:54.10   0.9    0.2 147                                   OXZ 
      eSg     18:32:56.45  S res =   0.6 
 LTZ  ePg     18:32:59.64   1.1    0.5  35                                   LTZ 
 CRLZ ePg     18:33:02.02   0.0    0.7 128                                   CRLZ
      ePn     18:33:10.99   6.4X
 MQZ  ePg     18:33:04.09   0.1    0.8 135                                   MQZ 
      eSg     18:33:13.36  S res =  -0.6 
 RPZ  ePn     18:33:07.19   0.3    0.8 229                                   RPZ 
 KHZ  ePn     18:33:14.66  -0.4    1.4  58                                   KHZ 
 THZ  ePn     18:33:17.53   0.0    1.6  28                                   THZ 
 LBZ  ePn     18:33:18.29  -1.2    1.7 225                                   LBZ 
 FOZ  ePn     18:33:19.52   2.5    1.6 256                                   FOZ 
 ODZ  ePn     18:33:23.70  -0.4    2.1 205                                   ODZ 
 WKZ  ePn     18:33:32.41   0.3    2.7 231                                   WKZ 
 MLZ  ePn     18:33:43.42  -0.2    3.5 230                                   MLZ 
 WHZ  ePn     18:33:48.34  -1.1    3.9 225                                   WHZ 
 BFZ  ePn     18:33:51.20  -0.5    4.1  54                                   BFZ 
 DCZ  ePn     18:33:51.48  -0.5    4.1 235                                   DCZ 
 PYZ  ePn     18:34:01.71   0.5    4.8 229                                   PYZ 
 HIZ  ePn     18:34:07.25   0.7    5.2  27                                   HIZ 
 BKZ  ePn     18:34:07.90  -0.5    5.3  42                                   BKZ 
 URZ  ePn     18:34:20.50  -1.7    6.3  41                                   URZ 
 OUZ  ePn     18:34:46.34   0.2    8.1  10                                   OUZ 



 Generated 2011 FEB  4 at 00:14 UTC

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