U.S. DEPARTMENT OF THE INTERIOR NO. 4-10-EXP GEOLOGICAL SURVEY AUG 31, 2010 ROUTINE MINING SEISMICITY IN THE UNITED STATES APRIL 2010 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 04 18 14 51.7 43.729 N 105.238 W 0 G A 1.6 51 21 WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette. 07 22 09 44.4* 45.135 N 106.854 W 0 G B 2.0 64 14 EASTERN MONTANA. ML 2.5 (GS). 40 km (25 miles) NNE of Sheridan. 09 16 31 20.9 41.789 N 110.669 W 0 G A 1.1 104 19 WYOMING. ML 2.4 (GS). 10 km (5 miles) W of Kemmerer. 09 21 44 34.8* 34.234 N 109.159 W 0 G B 1.2 156 8 ARIZONA. ML 2.6 (GS). 60 km (40 miles) W of Quemado. 12 18 33 02.2 43.805 N 105.289 W 0 G A 1.2 51 35 WYOMING. ML 3.3 (GS). 55 km (35 miles) SSE of Gillette. 18 18 06 23.9 43.632 N 105.194 W 1 * B 1.4 60 29 WYOMING. ML 3.6 (GS). 75 km (50 miles) SSE of Gillette. 21 20 03 57.7 44.060 N 105.183 W 0 G A 1.5 52 25 WYOMING. ML 3.4 (GS). 35 km (20 miles) SE of Gillette. 25 20 27 08.3? 50.09 N 114.66 W 0 G C 1.1 258 9 ALBERTA, CANADA. ML 2.3 (GS). 100 km (65 miles) NE of Cranbrook. 30 18 56 39.3 43.564 N 105.209 W 0 G A 1.2 51 34 WYOMING. ML 3.2 (GS). 85 km (50 miles) SSE of Gillette.