The 10 historical earthquakes nearest to reference event 11111813090n
located at 48.4693 119.6075 that occurred prior to 11111813090n. 
The list includes events with magnitude (Mag) > 3.0 and gives distance
and azimuth  from the reference event to each historical earthquake.

Date is given in Universal Time (UT). Subtract 8 hours to get Pacific
Standard time (PST) or 7 hours for PDT. Azimuth is the compass
direction (measured clockwise from North, 0-360 degrees) of the
earthquake from the location of the reference event. Usually, depths
listed as 0.0 km are either unknown or very unreliable.

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NEAREST HISTORICAL EARTHQUAKES SORTED BY DISTANCE FROM REFERENCE EVENT

Year MoDy  Hr:Mn  Depth   Mag   Distance Azimuth      Event Location
           (UT)    (km)             (km)   (Deg)
1963 1222  02:54    0.0   3.9       17.5   320.1	    28.3 km NNW of Okanogan, WA
1983 0425  15:48    8.0   3.0       18.1     9.5	    29.3 km   N of Okanogan, WA
1941 0407  09:25    0.0   4.5       18.9   178.3	     7.6 km SSW of Okanogan, WA
1997 0624  14:35    8.3   3.6       22.9   242.9	    22.5 km   W of Okanogan, WA
1994 0105  03:37    0.1   3.0       23.5   282.6	    30.0 km WNW of Okanogan, WA
1997 0624  14:23   11.2   4.6       23.9   240.6	    23.0 km   W of Okanogan, WA
2003 1226  10:07    0.4   3.4       31.6   356.3	    43.2 km   N of Okanogan, WA
1989 0509  18:28   15.6   4.5       32.2   214.6	    25.5 km  SW of Okanogan, WA
1978 0322  03:08   13.1   3.3       40.6   168.7	    29.0 km SSE of Okanogan, WA
1998 1112  06:38    6.8   3.0       43.3   150.4	    31.7 km  NW of Grand Coulee, WA

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NEAREST HISTORICAL EARTHQUAKES SORTED CHRONOLOGICALLY

Year MoDy  Hr:Mn  Depth   Mag   Distance Azimuth      Event Location
           (UT)    (km)             (km)   (Deg)
1941 0407  09:25    0.0   4.5       18.9   178.3	     7.6 km SSW of Okanogan, WA
1963 1222  02:54    0.0   3.9       17.5   320.1	    28.3 km NNW of Okanogan, WA
1978 0322  03:08   13.1   3.3       40.6   168.7	    29.0 km SSE of Okanogan, WA
1983 0425  15:48    8.0   3.0       18.1     9.5	    29.3 km   N of Okanogan, WA
1989 0509  18:28   15.6   4.5       32.2   214.6	    25.5 km  SW of Okanogan, WA
1994 0105  03:37    0.1   3.0       23.5   282.6	    30.0 km WNW of Okanogan, WA
1997 0624  14:23   11.2   4.6       23.9   240.6	    23.0 km   W of Okanogan, WA
1997 0624  14:35    8.3   3.6       22.9   242.9	    22.5 km   W of Okanogan, WA
1998 1112  06:38    6.8   3.0       43.3   150.4	    31.7 km  NW of Grand Coulee, WA
2003 1226  10:07    0.4   3.4       31.6   356.3	    43.2 km   N of Okanogan, WA