EQ History from 1999 to time of main shock
 Events are listed from geographic area 47.7332864 47.9332862 122.8665519 123.1998849
 Reference point in table is the mainshock of 200010151429

Distance and Azimuth from reference point to each earthquake
Reference point at Location   47.8458  123.0378

Event_Date___(UT) Depth  Mag  Dist(km)  Az(deg) Site Lat   Site Lon
1999 0907   10:23  13.4  1.0      13.4     61.3  47.9037   122.8803
2000 0821   11:00  44.9  2.6       0.2    167.8  47.8438   123.0372
2000 1012   00:57  49.0  2.5       9.0    158.6  47.7708   122.9943
2000 1015   14:29  48.6  3.6       0.0    329.1  47.8458   123.0378