Phase Data

Explanation of Parameters


     23 APR 2013  (113)

     ot  = 18:34:37.00   +/-   0.00        RAT ISLANDS, ALEUTIAN ISLANDS   
     lat =      52.087   +/-    0.0
     lon =     179.590   +/-    0.0              MAGNITUDE 2.7 (AEIC)     
     dep =        50.2   +/-    0.0   

     19 km (12 miles) N of Semisopochnoi Island, Alaska (pop < 100)
     75 km (47 miles) ENE of Little Sitkin Island, Alaska (pop < 100)
     2105 km (1307 miles) WSW of Anchorage, Alaska
     2951 km (1833 miles) W of JUNEAU, Alaska
 
     ML 2.7 (AEIC).

     nph =    5 of   5    se = 0.00    FE=006                            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     18:35:09.69   1.0    2.0  95                                   KIWB
 ADK  ePn     18:35:13.41   0.8    2.3  94                                   ADK 
 GSTR ePn     18:35:19.43   1.7    2.7  88                                   GSTR
 ATKA ePn     18:35:35.25   1.9    3.8  86                                   ATKA
 UNV  ePn     18:36:40.18   1.8    8.6  73                                   UNV 



 Generated 2013 APR 23 at 20:21 UTC

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