OKLAHOMA GEOLOGICAL SURVEY OBSERVATORY
OKLAHOMA EARTHQUAKE CATALOG
DATE (UTC) TIME (UTC) COUNTY ST MM MAGNITUDES LATITUDE LONGITUDE DEPTH SM
YYYY MMM DD HH MM SS.SS 3Hz bLg DUR deg (N) deg (W) km
1981 JAN 04 17 34 08.46 CANADIAN OK 2.3 2.2 2.2 35.6640 -98.0970 5.00R ON
1981 FEB 04 03 38 19.08 CREEK OK 1.8 1.5 1.8 35.6610 -96.3880 5.00R ON
1981 FEB 18 12 33 47.61 MC CLAIN OK 2.0 2.0 2.1 34.9020 -97.4910 5.00R ON
1981 FEB 20 02 20 29.71 CUSTER OK 2.4 2.2 2.3 35.7070 -99.2020 5.00R ON
1981 MAR 08 14 47 08.15 CANADIAN OK 1.9 1.9 1.9 35.5930 -98.0470 5.00R ON
1981 MAR 08 15 40 57.01 CANADIAN OK 2.2 2.3 2.3 35.6010 -97.9610 5.00R ON
1981 MAR 25 07 22 19.27 MC CLAIN OK 1.7 2.0 2.0 34.9250 -97.4120 5.00R ON
1981 APR 25 04 07 22.32 POTTAWATOMIEOK 1.7 1.5 2.0 35.1170 -96.9030 5.00R ON
1981 APR 27 00 04 03.25 OKMULGEE OK 2.0 2.1 35.6020 -95.8820 5.00R ON
1981 APR 27 07 51 08.11 POTTAWATOMIEOK 1.6 1.7 35.2930 -96.9160 5.00R ON
1981 MAY 05 11 29 54.68 ATOKA OK 1.9 2.1 34.5600 -95.8280 5.00R ON
1981 MAY 15 05 13 52.00 CANADIAN OK 1.9 1.7 1.9 35.4730 -97.8170 5.00R ON
1981 JUN 10 16 05 23.14 PONTOTOC OK 2.1 1.7 1.9 34.7140 -96.6840 5.00R ON
1981 JUN 17 05 02 24.82 GRANT OK 1.9 1.9 36.6750 -97.6250 5.00R ON
1981 JUL 01 22 43 30.07 MC CLAIN OK 2.3 2.5 2.7 34.9530 -97.5500 5.00R ON
1981 JUL 08 02 56 29.89 GARFIELD OK 1.4 36.5130 -97.5570 5.00R ON
1981 JUL 08 03 28 30.93 CANADIAN OK 1.7 1.7 1.7 35.6020 -98.0410 5.00R ON
1981 JUL 09 01 00 39.96 CANADIAN OK 1.7 1.9 1.7 35.5580 -98.0690 5.00R ON
1981 JUL 09 06 20 28.29 CANADIAN OK 1.5 1.7 1.5 35.5390 -98.0650 5.00R ON
1981 JUL 09 22 47 11.10 MC CLAIN OK 2.3 2.4 34.9550 -97.6510 5.00R ON
1981 JUL 10 03 16 56.10 CANADIAN OK 1.5 1.4 35.5140 -98.1280 5.00R ON
1981 JUL 10 07 23 11.90 MC CLAIN OK 1.6 1.7 1.8 34.9300 -97.6240 5.00R ON
1981 JUL 10 22 39 18.45 GARVIN OK 1.8 2.3 1.6 34.5440 -97.2830 5.00R ON
1981 JUL 11 19 14 24.90 GRADY OK 1.0 34.8530 -97.7320 5.00R ON
1981 JUL 11 19 21 07.63 GRADY OK 1.7 1.9 1.8 34.8580 -97.7190 5.00R ON
1981 JUL 11 19 26 39.20 GRADY OK 0.9 34.8530 -97.7320 5.00R ON
1981 JUL 11 19 28 07.25 GRADY OK 1.1 34.8530 -97.7320 5.00R ON
1981 JUL 11 19 30 38.19 GRADY OK 1.0 34.8530 -97.7320 5.00R ON
1981 JUL 11 19 34 53.98 GRADY OK 1.2 34.8530 -97.7320 5.00R ON
1981 JUL 11 19 36 38.40 GRADY OK 0.9 34.8530 -97.7320 5.00R ON
1981 JUL 11 19 44 47.96 MC CLAIN OK 1.9 1.9 1.9 34.8700 -97.6690 5.00R ON
1981 JUL 11 20 04 29.21 GRADY OK 1.8 1.9 1.8 34.9190 -97.7240 5.00R ON
1981 JUL 11 20 06 57.63 GRADY OK 2.1 2.3 2.3 34.8680 -97.7240 5.00R ON
1981 JUL 11 20 19 23.72 GRADY OK 2 2.0 2.2 2.2 34.8810 -97.7510 5.00R ON
1981 JUL 11 21 09 21.84 GRADY OK 5 2.9 3.5 3.0 34.8530 -97.7320 5.00R ON
1981 JUL 12 04 26 49.04 GRADY OK 1.5 1.6 1.5 34.7760 -97.6760 5.00R ON
1981 JUL 12 18 29 25.53 MC CLAIN OK 1.9 2.2 1.8 34.9470 -97.4270 5.00R ON
1981 JUL 14 04 08 15.36 OKFUSKEE OK 0.7 35.4180 -96.6040 5.00R ON
1981 JUL 15 18 31 33.83 GARVIN OK 2.0 2.3 1.9 34.5370 -97.3500 5.00R ON
1981 JUL 20 09 53 31.08 MC CLAIN OK 1.9 2.0 2.0 34.9710 -97.4110 5.00R ON
1981 JUL 25 00 04 31.72 OSAGE OK 1.6 1.5 36.6930 -96.9040 5.00R ON
1981 JUL 26 04 23 03.72 NOBLE OK 1.7 1.8 36.2240 -97.2320 5.00R ON
1981 JUL 31 23 24 25.91 LATIMER OK 1.7 2.0 34.7090 -95.2220 5.00R ON
1981 SEP 06 17 52 54.93 WOODS OK 2.3 2.2 36.4800 -98.5310 5.00R ON
1981 SEP 17 19 31 00.46 JOHNSTON OK 2.3 1.9 34.4810 -96.8230 5.00R ON
1981 SEP 28 11 36 07.58 ROGER MILLS OK 1.2 1.8 36.0150 -99.4000 5.00R ON
1981 OCT 24 05 35 42.27 PITTSBURG OK 1.3 1.7 35.1670 -95.7770 5.00R ON
1981 NOV 05 16 47 22.06 CANADIAN OK 2.1 2.0 1.9 35.6770 -97.9820 5.00R ON
1981 NOV 06 19 28 25.31 PONTOTOC OK 2.0 2.2 34.6760 -96.6820 5.00R ON
1981 NOV 09 09 36 55.47 GARVIN OK 1.9 1.7 1.9 34.7960 -97.4800 5.00R ON
1981 NOV 12 00 59 39.29 CREEK OK 1.1 1.6 35.6680 -96.4790 5.00R ON
1981 DEC 04 03 13 07.34 GRADY OK 1.8 2.0 1.9 35.1950 -97.6910 5.00R ON
1981 DEC 04 05 31 40.01 MC CLAIN OK 2.0 2.2 2.1 35.1370 -97.6590 5.00R ON
1981 DEC 09 21 50 03.65 COMANCHE OK 1.8 2.1 34.6080 -98.4650 5.00R ON
1981 DEC 17 05 22 53.76 GRADY OK 2.2 2.0 2.1 35.1320 -97.8520 5.00R ON
1981 DEC 17 05 44 54.70 GARFIELD OK 2.7 2.9 2.6 36.3870 -97.6610 5.00R ON
1981 DEC 19 02 49 53.21 LOVE OK 1.2 1.8 33.9480 -97.4950 5.00R ON
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