Phase Data

Explanation of Parameters


     12 FEB 2013  ( 43)

     ot  = 18:23:52.00   +/-   0.00        ANDREANOF ISLANDS, ALEUTIAN IS. 
     lat =      51.511   +/-    0.0
     lon =    -178.965   +/-    0.0              MAGNITUDE 3.1 (AEIC)     
     dep =        20.7   +/-    0.0   

     29 km (18 miles) NNE of Amatignak Island, Alaska (pop < 100)
     71 km (44 miles) SW of Tanaga Volcano, Alaska (pop N/A)
     2073 km (1288 miles) WSW of Anchorage, Alaska
     2901 km (1801 miles) W of JUNEAU, Alaska
 
     ML 3.1 (AEIC).

     nph =    6 of   6    se = 0.00    FE=007                            held

     error ellipse = (  0.0,  0.0,  0.0;  0.0,  0.0,  0.0;  0.0,  0.0,  0.0)

 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
 KIWB ePn     18:24:15.50   2.2    1.2  72                                   KIWB
      eSn     18:24:33.60  S res =   4.9 
 ADK  ePn     18:24:19.96   2.7    1.5  74                                   ADK 
      eSn     18:24:40.70  S res =   4.9 
 GSTR ePn     18:24:26.00   2.9    1.9  71                                   GSTR
 SPIA ePn     18:25:41.11  -0.6    7.6  39                                   SPIA



 Generated 2013 FEB 12 at 22:59 UTC

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