U.S. DEPARTMENT OF THE INTERIOR NO. 10-06-EXP GEOLOGICAL SURVEY DEC 19, 2006 ROUTINE MINING SEISMICITY IN THE UNITED STATES OCTOBER 2006 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 03 20 00 13.5 43.921 N 105.389 W 0 G A 1.4 104 21 WYOMING. ML 3.2 (GS). 40 km (25 miles) SSE of Gillette. 03 22 51 20.1 41.705 N 108.669 W 0 G A 1.9 60 31 WYOMING. ML 2.8 (GS). 45 km (30 miles) ENE of Rock Springs. 04 18 06 49.8 43.689 N 105.187 W 0 G A 0.6 122 26 WYOMING. ML 3.4 (GS). 75 km (45 miles) SSE of Gillette. 04 22 22 07.0* 43.143 N 104.836 W 0 G B 1.3 163 9 WYOMING. ML 2.8 (GS). 60 km (40 miles) NE of Douglas. 07 23 10 10.3 41.783 N 108.614 W 0 G A 1.4 84 32 WYOMING. ML 2.8 (GS). 55 km (35 miles) ENE of Rock Springs. 10 18 02 55.5 43.731 N 105.225 W 0 G A 0.6 118 13 WYOMING. ML 3.1 (GS). 65 km (40 miles) SSE of Gillette. 10 18 58 54.7 43.556 N 105.135 W 0 G A 1.1 131 22 WYOMING. ML 3.3 (GS). 80 km (50 miles) WSW of Newcastle. 14 18 58 07.8 43.632 N 105.259 W 0 G A 1.3 121 29 WYOMING. ML 3.1 (GS). 75 km (45 miles) SSE of Gillette. 15 19 10 17.8 43.751 N 105.256 W 0 G A 0.6 94 34 WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette. 16 18 11 02.2 43.781 N 105.254 W 0 G A 0.7 96 32 WYOMING. ML 3.4 (GS). 60 km (35 miles) SSE of Gillette. 19 18 10 50.4 43.769 N 105.227 W 0 G A 0.9 94 48 WYOMING. ML 3.5 (GS). 65 km (40 miles) SSE of Gillette. 19 20 02 18.6 43.712 N 105.185 W 0 G A 0.8 95 35 WYOMING. ML 3.4 (GS). 70 km (45 miles) SSE of Gillette. 22 18 04 03.5 43.801 N 105.272 W 0 G A 0.8 94 46 WYOMING. ML 3.4 (GS). 60 km (35 miles) SSE of Gillette. 22 20 59 39.4 43.773 N 105.203 W 0 G A 1.6 143 22 WYOMING. ML 3.2 (GS). 60 km (40 miles) SSE of Gillette. 25 18 03 32.9 43.712 N 105.226 W 0 G A 0.9 120 30 WYOMING. ML 3.2 (GS). 70 km (40 miles) SSE of Gillette. 28 22 03 45.8* 45.911 N 106.834 W 0 G B 1.5 197 14 EASTERN MONTANA. ML 2.6 (GS). 10 km (5 miles) WNW of Colstrip. 30 21 02 04.6 43.681 N 105.208 W 0 G A 1.2 122 22 WYOMING. ML 3.2 (GS). 70 km (45 miles) SSE of Gillette. 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.