U.S. DEPARTMENT OF THE INTERIOR NO. 3-144-EXP GEOLOGICAL SURVEY MAY 24, 2013 ROUTINE MINING SEISMICITY IN THE UNITED STATES ORIGIN TIME GEOGRAPHIC DEPTH MAGNITUDE Q SD GAP NO. F-E REGION, CONTRIBUTED MAGNITUDES AND COMMENTS UTC COORDINATES GS STA DAY HR MN SEC LAT LONG mb MS USED FEB 2013 23 20 06 13.9 43.569 N 105.142 W 0 G A 2.0 55 34 WYOMING. ML 3.2 (GS). 85 km (53 miles) E of Midwest. 27 19 23 40.9 41.723 N 110.635 W 0 G A 1.4 34 66 WYOMING. ML 2.6 (GS). 11 km (7 miles) SW of Kemmerer. 28 19 10 10.5 43.702 N 105.858 W 0 G A 1.1 138 19 WYOMING. ML 2.9 (GS). 47 km (29 miles) NE of Midwest. 28 21 08 19.4 43.815 N 105.345 W 0 G A 1.1 67 10 WYOMING. ML 3.1 (GS). 54 km (34 miles) SSE of Gillette. MAR 2013 01 16 53 27.1 33.703 N 87.294 W 0 G A 1.0 76 22 ALABAMA. mbLg 2.7 (GS). 14 km (9 miles) S of Jasper. Felt at Cordova. 02 15 29 40.8 33.777 N 87.417 W 0 G A 1.3 77 23 ALABAMA. mbLg 2.7 (GS). 14 km (9 miles) WSW of Jasper. Felt at Jasper. 03 19 01 31.8 43.795 N 105.292 W 0 G A 1.1 72 11 WYOMING. ML 3.0 (GS). 58 km (36 miles) SSE of Gillette. 06 19 43 50.1* 43.709 N 105.154 W 0 G B 1.2 116 8 WYOMING. ML 3.2 (GS). 70 km (44 miles) SSE of Gillette. 06 21 06 28.7 43.745 N 105.330 W 0 G A 1.0 56 18 WYOMING. mbLg 3.1 (GS). 64 km (40 miles) SSE of Gillette. 07 22 30 04.7 43.635 N 105.194 W 0 G A 1.0 181 11 WYOMING. ML 3.3 (GS). 77 km (48 miles) SSE of Gillette. 08 21 38 14.2 43.654 N 105.245 W 0 G A 1.3 76 42 WYOMING. ML 3.4 (GS). 73 km (45 miles) SSE of Gillette. 09 17 30 17.2 45.859 N 106.748 W 0 G A 1.5 83 10 EASTERN MONTANA. ML 2.8 (GS). 11 km (7 miles) WSW of Colstrip. 10 18 00 04.3* 43.797 N 105.180 W 0 G B 0.9 107 8 WYOMING. ML 2.9 (GS). 61 km (38 miles) SSE of Gillette. 11 05 56 02.1 38.038 N 88.728 W 0 G A 0.8 25 56 ILLINOIS. mbLg 2.7 (GS). 35 km (21 miles) SSE of Mount Vernon. mbLg 2.7 (GS). Felt at Carbondale, Ewing, Harrisburg and Herrin. 18 19 08 49.6 43.778 N 105.095 W 0 G A 1.1 144 48 WYOMING. ML 3.1 (GS). 66 km (41 miles) SSE of Gillette. 20 20 40 15.1 45.205 N 106.735 W 0 G A 1.5 66 32 EASTERN MONTANA. ML 2.8 (GS). 49 km (30 miles) NNE of Sheridan. 21 15 52 27.7* 44.125 N 105.180 W 0 G B 1.4 105 7 WYOMING. ML 2.9 (GS). 32 km (20 miles) SE of Gillette. 21 17 59 21.6 43.795 N 105.170 W 0 G A 1.1 89 35 WYOMING. ML 3.2 (GS). 61 km (38 miles) SSE of Gillette. 24 19 29 21.0 43.969 N 105.210 W 0 G A 1.4 61 11 WYOMING. ML 2.7 (AEIC). 43 km (27 miles) SSE of Gillette. 24 23 02 35.7 43.794 N 105.216 W 0 G A 0.7 82 10 WYOMING. ML 2.8 (GS). 60 km (37 miles) SSE of Gillette. 26 20 00 22.8 43.839 N 105.204 W 0 G A 1.2 55 18 WYOMING. ML 3.1 (GS). 56 km (35 miles) SSE of Gillette. 26 20 21 28.0* 45.196 N 106.895 W 0 G B 0.6 102 9 EASTERN MONTANA. ML 2.5 (GS). 45 km (28 miles) N of Sheridan. 27 17 00 21.9* 47.566 N 92.990 W 0 G B 1.0 100 8 MINNESOTA. mbLg 3.0 (GS). 17 km (11 miles) NNW of Hibbing. 28 23 35 45.9* 43.945 N 105.430 W 0 G B 2.4 111 6 WYOMING. ML 3.2 (GS). 39 km (24 miles) S of Gillette. APR 2013 02 19 09 35.2? 43.07 N 104.80 W 0 G C 2.1 229 9 WYOMING. ML 3.4 (GS). 59 km (37 miles) NE of Douglas. 02 20 05 25.4 43.793 N 105.230 W 0 G A 1.1 50 20 WYOMING. ML 3.2 (GS). 60 km (37 miles) SSE of Gillette. 04 20 08 21.5 43.779 N 105.268 W 0 G A 1.1 26 79 WYOMING. ML 3.9 (GS). 59 km (37 miles) SSE of Gillette. 04 21 06 00.5? 43.78 N 105.34 W 0 G C 0.4 201 5 WYOMING. ML 2.6 (GS). 51 km (32 miles) SSE of Gillette. 05 19 05 16.1 43.612 N 105.209 W 0 G A 1.4 78 13 WYOMING. ML 3.3 (GS). 79 km (49 miles) SSE of Gillette. 06 20 02 34.7 43.782 N 105.165 W 0 G A 0.6 52 50 WYOMING. ML 3.1 (GS). 63 km (39 miles) SSE of Gillette. 07 19 20 54.9 43.576 N 105.121 W 0 G A 1.4 83 26 WYOMING. ML 3.2 (GS). 80 km (50 miles) WSW of Newcastle. 10 22 19 39.9 33.683 N 87.278 W 0 G A 1.5 62 29 ALABAMA. mbLg 2.9 (GS). 16 km (10 miles) S of Jasper. 12 21 59 51.7 43.603 N 105.284 W 0 G A 1.0 76 11 WYOMING. ML 2.9 (GS). 78 km (49 miles) SSE of Gillette. 13 19 16 36.9 43.598 N 105.228 W 0 G A 0.9 78 22 WYOMING. ML 3.0 (GS). 77 km (48 miles) SSE of Gillette. 13 19 43 31.9 44.436 N 105.436 W 0 G A 0.6 120 21 WYOMING. ML 2.9 (GS). 17 km (11 miles) NNE of Gillette. 25 23 17 19.1* 45.968 N 106.838 W 0 G B 0.7 97 6 EASTERN MONTANA. ML 2.8 (GS). 19 km (12 miles) WNW of Colstrip. MAY 2013 05 16 02 15.7 43.695 N 105.184 W 0 G A 0.8 76 53 WYOMING. ML 3.3 (GS). 71 km (44 miles) SSE of Gillette. ML 3.3 (GS). 16 22 02 48.0 40.332 N 107.951 W 0 G A 0.8 83 24 COLORADO. ML 2.9 (GS). 25 km (16 miles) NNE of Meeker. 17 22 08 37.5 40.281 N 107.298 W 0 G A 1.2 51 26 COLORADO. ML 2.7 (GS). 33 km (21 miles) SE of Craig. For origin times after September 30, 2002, USGS computations of hypocenters and magnitudes for routine mining events are listed in this publication only for exceptionally large events and for events that are also listed in the Reviewed Event Event Bulletins (REB) of the International Data Center of the United Nations' Comprehensive Nuclear-Test-Ban Treaty Organization.