U.S. DEPARTMENT OF THE INTERIOR NO. 6-13-EXP GEOLOGICAL SURVEY AUG 27, 2013 ROUTINE MINING SEISMICITY IN THE UNITED STATES JUNE 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 00 23 06.8 33.063 N 109.496 W 0 G A 1.5 108 12 ARIZONA. ML 2.8 (GS). 22 km (13 miles) W of Clifton. 01 22 30 24.2* 32.987 N 109.588 W 0 G B 1.5 109 7 ARIZONA. ML 2.8 (GS). 21 km (13 miles) NNE of Safford. 02 23 14 35.4 45.906 N 106.572 W 0 G A 1.3 102 13 EASTERN MONTANA. ML 3.0 (GS). 3 km (2 miles) NNE of Colstrip. 03 21 51 27.3 41.107 N 112.874 W 0 G A 0.7 106 12 UTAH. ML 1.5 (GS). 77 km (48 miles) W of Ogden. 05 20 04 22.3 43.844 N 105.293 W 0 G A 1.1 51 84 WYOMING. ML 3.6 (GS). 52 km (33 miles) SSE of Gillette. 07 00 52 53.5* 44.217 N 105.309 W 0 G B 1.3 182 12 WYOMING. ML 2.9 (GS). 18 km (11 miles) ESE of Gillette. 07 21 17 00.5 37.764 N 82.054 W 0 G A 1.6 56 23 WEST VIRGINIA. ML 2.6 (GS). mbLg 2.6 (GS). 23 km (14 miles) ENE of Williamson. 07 21 18 28.9* 43.756 N 105.224 W 0 G B 1.3 117 8 WYOMING. ML 2.9 (GS). 64 km (39 miles) SSE of Gillette. 08 21 38 19.6* 43.739 N 105.210 W 0 G B 1.2 128 9 WYOMING. ML 2.7 (GS). 66 km (41 miles) SSE of Gillette. 09 19 01 43.9 43.807 N 105.250 W 0 G A 1.0 51 37 WYOMING. ML 3.4 (GS). 58 km (36 miles) SSE of Gillette. 13 23 43 56.6* 33.069 N 109.612 W 0 G B 1.3 104 8 ARIZONA. ML 2.5 (GS). 27 km (17 miles) NNE of Safford. 16 18 06 40.0 43.814 N 105.254 W 0 G A 0.8 51 32 WYOMING. ML 3.5 (GS). 56 km (35 miles) SSE of Gillette. 18 17 00 03.7 47.428 N 93.058 W 0 G A 1.0 96 29 MINNESOTA. ML 3.3 (GS). 11 km (7 miles) W of Hibbing. 20 21 16 46.9 37.750 N 82.055 W 0 G A 1.2 56 23 WEST VIRGINIA. mbLg 2.5 (GS). 22 km (14 miles) ENE of Williamson. 20 23 50 42.1 40.663 N 109.553 W 0 G A 1.3 47 47 UTAH. ML 3.3 (GS). 23 km (14 miles) N of Vernal. 21 22 37 04.5 37.932 N 81.305 W 0 G A 1.1 55 24 WEST VIRGINIA. mbLg 2.7 (GS). 19 km (12 miles) NW of Beckley. 24 20 03 17.9 43.697 N 105.277 W 0 G A 1.3 73 39 WYOMING. ML 3.1 (GS). 69 km (43 miles) SSE of Gillette. 26 17 56 31.6 43.801 N 105.245 W 0 G A 0.8 35 82 WYOMING. ML 3.4 (GS). 58 km (36 miles) SSE of Gillette. 27 15 31 36.5 47.699 N 91.888 W 0 G A 0.4 91 10 MINNESOTA. ML 2.6 (GS). 23 km (14 miles) S of Ely. 27 17 40 45.5 47.661 N 92.514 W 0 G B 0.9 140 8 MINNESOTA. ML 2.7 (GS). 15 km (10 miles) N of Virginia. 29 22 06 52.7* 43.556 N 105.238 W 0 G B 1.3 90 9 WYOMING. ML 2.7 (GS). 84 km (52 miles) SSE of Gillette. 29 23 33 38.7 43.691 N 105.241 W 0 G A 1.5 76 11 WYOMING. ML 2.7 (GS). 70 km (43 miles) SSE of Gillette. 30 21 02 20.2 44.468 N 105.441 W 0 G A 1.0 96 20 WYOMING. ML 2.8 (GS). 20 km (13 miles) NNE of Gillette. 30 23 14 38.5 43.574 N 105.126 W 0 G A 1.4 82 13 WYOMING. ML 3.0 (GS). 81 km (50 miles) WSW of Newcastle. 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.