U.S. DEPARTMENT OF THE INTERIOR NO. 5-13-EXP GEOLOGICAL SURVEY JUL 18, 2013 ROUTINE MINING SEISMICITY IN THE UNITED STATES MAY 2013 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 01 18 21 24.5 43.678 N 105.340 W 0 G A 1.4 72 12 WYOMING. ML 3.2 (GS). 69 km (43 miles) S of Gillette. 03 23 20 27.7* 43.668 N 105.291 W 0 G B 0.8 75 7 WYOMING. ML 3.0 (GS). 71 km (44 miles) SSE of Gillette. 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). 05 19 04 36.9 43.624 N 105.276 W 0 G A 1.1 76 32 WYOMING. ML 3.1 (GS). 76 km (47 miles) SSE of Gillette. 07 18 04 07.5 43.709 N 105.239 W 0 G A 0.8 47 62 WYOMING. ML 3.6 (GS). 68 km (42 miles) SSE of Gillette. 08 18 06 37.7 43.782 N 105.228 W 0 G A 0.9 55 18 WYOMING. ML 3.4 (GS). 61 km (38 miles) SSE of Gillette. 09 18 01 25.0 43.828 N 105.203 W 0 G A 0.8 51 72 WYOMING. ML 3.3 (GS). 57 km (35 miles) SSE of Gillette. 11 18 21 23.8 43.746 N 105.188 W 0 G A 1.0 28 65 WYOMING. ML 3.4 (GS). 66 km (41 miles) SSE of Gillette. 12 21 46 49.7? 43.83 N 106.26 W 0 G C 1.9 225 7 WYOMING. ML 2.8 (GS). 35 km (22 miles) N of Midwest. 12 23 02 56.8? 43.92 N 105.10 W 0 G C 1.0 110 5 WYOMING. ML 2.5 (GS). 55 km (34 miles) SE of Gillette. 14 22 26 20.6 45.859 N 106.806 W 0 G A 0.7 105 9 EASTERN MONTANA. mbLg 2.6 (GS). 14 km (9 miles) W of Colstrip. 15 19 06 50.1 43.612 N 105.145 W 0 G A 1.2 51 68 WYOMING. ML 3.3 (GS). 81 km (50 miles) WSW of Newcastle. 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 18 05 37.1 43.797 N 105.210 W 0 G A 1.0 43 47 WYOMING. ML 3.1 (GS). 59 km (37 miles) SSE of Gillette. 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. 18 18 05 46.4 43.787 N 105.232 W 0 G A 1.2 26 103 WYOMING. ML 3.4 (GS). 60 km (37 miles) SSE of Gillette. 20 00 13 55.7* 32.957 N 109.546 W 0 G B 1.8 108 11 ARIZONA. ML 2.8 (GS). 19 km (12 miles) NE of Safford. 23 21 09 41.7 38.080 N 82.068 W 0 G A 1.8 63 24 WEST VIRGINIA. mbLg 2.8 (GS). 48 km (30 miles) SW of CHARLESTON. 24 19 09 37.1 43.823 N 105.214 W 0 G A 0.8 28 74 WYOMING. ML 3.3 (GS). 57 km (35 miles) SSE of Gillette. 25 23 54 08.9 33.169 N 109.594 W 0 G A 1.9 103 19 ARIZONA. ML 2.9 (GS). 31 km (19 miles) WNW of Clifton. 26 18 05 30.1 43.786 N 105.274 W 0 G A 0.9 51 39 WYOMING. ML 3.2 (GS). 59 km (37 miles) SSE of Gillette. 29 20 05 37.2 43.815 N 105.251 W 0 G A 0.8 51 36 WYOMING. ML 3.5 (GS). 57 km (35 miles) SSE of Gillette. 30 11 20 45.8 37.942 N 81.249 W 1 G A 1.3 50 20 WEST VIRGINIA. mbLg 2.5 (GS). 19 km (12 miles) NNW of Beckley. 30 22 48 32.2* 45.378 N 106.711 W 0 G B 1.5 112 18 EASTERN MONTANA. ML 2.9 (GS). 57 km (35 miles) S of Colstrip. 31 23 58 13.5* 43.304 N 105.404 W 0 G B 1.9 141 10 WYOMING. ML 3.1 (GS). 60 km (38 miles) N of Douglas. 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.