EQ History from 2003 to time of main shock
 Events are listed from geographic area 47.4666200 47.6666198 122.3998847 122.7332177
 Reference point in table is the mainshock of 200401160818

Distance and Azimuth from reference point to each earthquake
Reference point at Location   47.5700  122.5700

Event_Date___(UT) Depth  Mag  Dist(km)  Az(deg) Site Lat   Site Lon
2003 0318   11:42  27.2  2.5       3.9    318.6  47.5965   122.6045
2003 0505   19:56  27.0  1.1       2.5    130.5  47.5552   122.5443
2003 0530   03:49  25.0  3.7      15.0    233.5  47.4897   122.7297
2003 0530   08:25  24.7  1.1      12.0    230.4  47.5012   122.6925
2003 0601   06:03  23.9  1.5      14.7    230.9  47.4865   122.7215
2003 0729   07:00  23.9  2.0       2.1    332.7  47.5868   122.5828
2003 0803   05:08  50.6  1.3       5.3     61.3  47.5928   122.5083
2003 1015   07:44  23.9  1.3       8.7    174.3  47.4920   122.5585
2003 1031   12:39  17.1  1.6       7.6    253.9  47.5510   122.6672
2003 1217   19:49  25.7  1.8      13.8    304.9  47.6408   122.7205
2004 0107   06:51  18.7  1.3       8.6    137.1  47.5135   122.4927
2004 0116   08:18  49.6  3.6       0.0     90.0  47.5700   122.5698