U.S. DEPARTMENT OF THE INTERIOR NO. 3-04-EXP GEOLOGICAL SURVEY MAY 4, 2004 ROUTINE MINING SEISMICITY IN THE UNITED STATES MARCH 2004 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 17 28 46.8 44.096 N 105.315 W 0 G A 1.0 119 14 WYOMING. ML 3.2 (GS). 25 km (15 miles) SE of Gillette. 04 22 01 59.0 43.820 N 105.327 W 0 G A 1.0 109 11 WYOMING. ML 3.1 (GS). 55 km (35 miles) SSE of Gillette. 05 19 03 45.5 43.763 N 105.230 W 0 G A 0.8 140 17 WYOMING. ML 3.3 (GS). 65 km (40 miles) SSE of Gillette. 06 17 50 10.9 44.076 N 105.184 W 0 G A 0.7 97 23 WYOMING. ML 3.3 (GS). 35 km (25 miles) SE of Gillette. 06 19 05 59.5 43.746 N 105.279 W 0 G A 1.3 114 12 WYOMING. ML 3.1 (GS). 65 km (40 miles) SSE of Gillette. 07 21 26 56.7 43.409 N 105.163 W 0 G A 1.1 137 14 WYOMING. ML 3.1 (GS). 75 km (45 miles) NNE of Douglas. 08 18 16 31.9 44.183 N 105.341 W 0 G A 1.0 87 21 WYOMING. ML 3.4 (GS). 20 km (10 miles) SE of Gillette. 10 19 01 56.4 43.729 N 105.238 W 0 G A 0.9 116 24 WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette. ML 3.4 (GS). 10 23 19 55.2* 41.196 N 117.184 W 0 G B 0.9 121 8 NEVADA. ML 2.3 (GS). 55 km (35 miles) ENE of Winnemucca. 12 19 38 11.2 43.698 N 105.148 W 0 G A 1.0 120 14 WYOMING. ML 3.0 (GS). 70 km (45 miles) SSE of Gillette. 12 20 35 21.7 43.729 N 105.289 W 0 G A 0.9 115 17 WYOMING. ML 3.1 (GS). 65 km (40 miles) SSE of Gillette. 13 21 04 12.5 43.915 N 105.244 W 0 G A 1.4 105 21 WYOMING. ML 3.0 (GS). 45 km (30 miles) SSE of Gillette. 19 22 12 51.4 43.780 N 105.248 W 0 G A 0.9 113 25 WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette. 20 21 44 51.7* 43.576 N 105.172 W 0 G B 0.3 129 7 WYOMING. ML 3.0 (GS). 85 km (50 miles) WSW of Newcastle. 25 19 04 46.5 43.804 N 105.228 W 0 G 4.2 A 0.8 44 37 WYOMING. ML 3.5 (GS). 60 km (35 miles) SSE of Gillette. 29 20 00 43.5 45.247 N 106.882 W 0 G 4.6 A 1.2 66 12 EASTERN MONTANA. ML 3.4 (GS). 50 km (30 miles) N of Sheridan.