EQ History from 1998 to time of main shock
 Events are listed from geographic area 46.7666230 46.9666228 121.7998862 122.1332192
 Reference point in table is the mainshock of 9904170731

Distance and Azimuth from reference point to each earthquake
Reference point at Location   46.8592  121.9678

Event_Date___(UT) Depth  Mag  Dist(km)  Az(deg) Site Lat   Site Lon
1998 0109   20:37   4.3  1.1       9.2      1.2  46.9415   121.9653
1998 0215   15:14   9.3  3.2       0.4    309.5  46.8617   121.9722
1998 0227   01:12   5.9  1.3       8.4     46.0  46.9118   121.8883
1998 0301   15:16   9.8  1.5       3.6     69.7  46.8703   121.9238
1998 0508   06:16  11.2  1.5       2.9     65.6  46.8698   121.9337
1998 0513   15:53  10.7  1.2       3.2     75.7  46.8663   121.9270
1998 0530   08:30   9.6  1.2       0.8     41.5  46.8643   121.9612
1998 0607   23:11   6.0  1.6       8.6    160.3  46.7860   121.9297
1998 0711   11:16   6.4  1.2       2.3    174.0  46.8388   121.9647
1998 1201   10:20   8.6  1.8       5.0    140.8  46.8242   121.9262
1998 1206   23:10   9.5  1.3       3.0    114.3  46.8482   121.9322
1998 1227   04:33   8.8  1.0      11.0    341.7  46.9532   122.0132
1999 0328   10:43   7.9  1.1      11.1    149.2  46.7737   121.8937
1999 0417   07:31   7.6  3.5       0.0    217.3  46.8592   121.9678