The 10 historical earthquakes nearest to reference event 02051517544k
located at 42.2287 121.9032 that occurred prior to 02051517544k. 
The list includes events with magnitude (Mag) > 4.0 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)
1994 0109  19:02    2.8   4.3        4.0   338.4	    12.3 km WNW of Klamath Falls, OR
1994 0107  09:39    1.6   4.0        4.9   343.6	    12.6 km WNW of Klamath Falls, OR
1993 1231  18:08    0.0   4.1        6.9   337.7	    14.4 km WNW of Klamath Falls, OR
1993 1225  12:33    0.1   4.0        7.0   328.0	    15.2 km WNW of Klamath Falls, OR
1994 0119  22:27    1.0   4.3        7.4   330.1	    15.4 km WNW of Klamath Falls, OR
1993 1204  22:15    6.5   5.1       11.2   308.8	    20.2 km WNW of Klamath Falls, OR
1993 0921  03:29   10.3   5.9       14.1   313.7	    22.7 km WNW of Klamath Falls, OR
1993 0923  06:21    7.2   4.1       14.7   304.5	    23.9 km WNW of Klamath Falls, OR
1965 1030  19:15   25.0   4.0       16.7   149.2	    14.0 km   S of Klamath Falls, OR
1993 0921  05:45   10.3   6.0       19.2   318.2	    23.6 km ESE of Mt McLoughlin, OR

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NEAREST HISTORICAL EARTHQUAKES SORTED CHRONOLOGICALLY

Year MoDy  Hr:Mn  Depth   Mag   Distance Azimuth      Event Location
           (UT)    (km)             (km)   (Deg)
1965 1030  19:15   25.0   4.0       16.7   149.2	    14.0 km   S of Klamath Falls, OR
1993 0921  03:29   10.3   5.9       14.1   313.7	    22.7 km WNW of Klamath Falls, OR
1993 0921  05:45   10.3   6.0       19.2   318.2	    23.6 km ESE of Mt McLoughlin, OR
1993 0923  06:21    7.2   4.1       14.7   304.5	    23.9 km WNW of Klamath Falls, OR
1993 1204  22:15    6.5   5.1       11.2   308.8	    20.2 km WNW of Klamath Falls, OR
1993 1225  12:33    0.1   4.0        7.0   328.0	    15.2 km WNW of Klamath Falls, OR
1993 1231  18:08    0.0   4.1        6.9   337.7	    14.4 km WNW of Klamath Falls, OR
1994 0107  09:39    1.6   4.0        4.9   343.6	    12.6 km WNW of Klamath Falls, OR
1994 0109  19:02    2.8   4.3        4.0   338.4	    12.3 km WNW of Klamath Falls, OR
1994 0119  22:27    1.0   4.3        7.4   330.1	    15.4 km WNW of Klamath Falls, OR