Phase Data

Explanation of Parameters


     14 JAN 2012  ( 14)

     ot  = 13:47:50.72   +/-   1.63              SOUTH ISLAND OF NEW ZEALAND     
     lat =     -43.561   +/-    6.4
     lon =     172.931   +/-    7.1              MAGNITUDE 4.5 (GS)       
     dep =        10.4   +/-    3.2   

     21 km (13 miles) E of Christchurch, New Zealand (pop 367,000)
     229 km (142 miles) SSE of Westport, New Zealand
     294 km (183 miles) SSW of WELLINGTON, New Zealand
     321 km (200 miles) NE of Dunedin, New Zealand

     nph =   35 of  35    se = 0.80    FE=162                            A   

     error ellipse = (129.0,  2.0, 12.7;219.0,  6.0,  7.3; 17.0, 82.0,  4.7)

 mb = 4.5 (  1)  ML = 4.9 ( 41)  mblg = 4.6 ( 20)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 CRLZ ePg     13:47:55.92   0.5    0.2 266 L:1.1+3 .95 5.3                   CRLZ
      eSg     13:47:58.08  S res =  -0.4 
 MQZ  ePg     13:47:56.95   1.1    0.3 234 L:4.1+2 .53 4.9                   MQZ 
      eSg     13:48:00.06  S res =   0.8 
 OXZ  ePg     13:48:04.01  -0.1    0.7 290 L:3.0+2 .73 5.3  g:3.2+1 .96 5.2  OXZ 
      eSg     13:48:12.86  S res =  -0.3 
 LTZ  ePn     13:48:09.63   0.0    0.9 328 L:2.9+2 .70 5.5  g:7.3+0 .75 4.7  LTZ 
      eSg     13:48:20.29  S res =   0.0 
 KHZ  ePn     13:48:14.79   0.9    1.2  22 L:1.1+1 .85 4.3  g:1.6+0 .77 4.1  KHZ 
 RPZ  ePn     13:48:15.58  -0.3    1.4 263 L:3.3+1 1.0 4.8  g:2.0+1 1.0 5.3  RPZ 
      eSn     13:48:31.24  S res =  -2.8 
 THZ  ePn     13:48:22.60   0.8    1.8 359 L:1.5+1 .98 4.7  g:4.0+0 .97 4.7  THZ 
      eSn     13:48:43.56  S res =  -1.0 
 LBZ  ePn     13:48:27.08   0.5    2.1 246 L:2.2+1 .90 5.0                   LBZ 
      eSn     13:48:50.19  S res =  -3.1 
 ODZ  ePn     13:48:28.09   0.7    2.2 227 L:1.5+1 .56 4.9                   ODZ 
 FOZ  ePn     13:48:29.53   1.4    2.3 270 L:1.8+1 1.3 5.0                   FOZ 
 SNZO ePn     13:48:33.83   1.0    2.6  31 L:2.7+0 .95 4.3  g:4.2-1 .90 3.9  SNZO
 WKZ  ePn     13:48:39.55   0.1    3.1 244 L:1.3+1 1.2 5.2  g:5.4+0 .96 5.1  WKZ 
 BFZ  ePn     13:48:49.43   0.3    3.8  42 L:1.2+0 1.7 4.4                   BFZ 
 MLZ  ePn     13:48:50.37  -0.1    3.9 241 L:5.3+0 1.0 5.1  g:1.6+0 .86 4.7  MLZ 
 WHZ  ePn     13:48:54.65  -0.8    4.3 235 L:3.9+0 .86 5.0  g:2.1+0 1.1 4.8  WHZ 
 DCZ  ePn     13:48:59.46  -0.1    4.6 243 L:2.2+0 .68 4.9  g:1.6+0 1.0 4.7  DCZ 
 PYZ  ePn     13:49:07.42  -0.4    5.2 237 L:3.7+0 .74 5.3  g:1.7+0 1.2 4.8  PYZ 
 BKZ  ePn     13:49:07.70  -0.1    5.1  33 L:7.3-1 1.2 4.6  g:3.3-1 1.1 4.1  BKZ 
 HIZ  ePn     13:49:10.65   1.5    5.3  17 L:1.5+0 .87 4.9  g:3.3-1 .75 4.1  HIZ 
 URZ  ePn     13:49:20.43  -1.3    6.2  32 L:2.7-1 .80 4.5  g:2.1-1 1.2 4.0  URZ 
 MXZ  ePn     13:49:37.23   0.6    7.3  36 L:2.2-1 1.6 4.7  g:1.3-1 1.2 3.9  MXZ 
 TAU  eP      13:52:09.26   0.7   18.6 263 b:1.2+2 1.7 4.8                   TAU 
 CAN  eP      13:52:24.19  -1.2   20.2 286 b:3.1+1 1.5 4.4                   CAN 
 STKA eP      13:53:34.51  -0.3   27.2 285 b:1.0+0 1.0 3.5                   STKA
 AS01 eP      13:55:05.89   0.3   37.6 289                                   AS01
 AS31 eP      13:55:06.14   0.3   37.6 289 b:2.4+0 1.2 3.8                   AS31
 WB2  eP      13:55:22.33  -2.3   39.9 294                                   WB2 
      eP      13:55:24.23  -0.4 



 Generated 2012 JAN 14 at 14:06 UTC

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