Bulletin: February 2008
U.S. DEPARTMENT OF THE INTERIOR NO. 8-121-EXP GEOLOGICAL SURVEY APR 30, 2008 ROUTINE MINING SEISMICITY IN THE UNITED STATES 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 FEB 2008 01 19 07 50.9 43.695 N 105.190 W 0 G A 1.1 119 24 WYOMING. ML 3.2 (GS). 70 km (45 miles) SSE of Gillette. 01 21 25 07.0 43.811 N 105.202 W 0 G A 1.0 70 21 WYOMING. ML 3.3 (GS). 60 km (35 miles) SSE of Gillette. 02 19 10 15.1 43.703 N 105.181 W 0 G A 1.2 75 25 WYOMING. ML 3.3 (GS). 70 km (45 miles) SSE of Gillette. 04 19 06 32.7 43.740 N 105.236 W 0 G A 1.0 72 19 WYOMING. ML 3.2 (GS). 65 km (40 miles) SSE of Gillette. 05 19 28 22.8 43.793 N 105.277 W 0 G A 1.0 69 19 WYOMING. ML 3.2 (GS). 60 km (35 miles) SSE of Gillette. 09 21 02 16.0 43.739 N 105.220 W 0 G A 1.0 73 34 WYOMING. ML 3.2 (GS). 65 km (40 miles) SSE of Gillette. 11 21 06 17.7 43.802 N 105.221 W 0 G A 0.9 70 18 WYOMING. ML 3.3 (GS). 60 km (35 miles) SSE of Gillette. 13 22 02 52.7 43.477 N 105.205 W 0 G A 1.0 83 16 WYOMING. ML 3.1 (GS). 80 km (50 miles) N of Douglas. 15 16 01 49.1* 37.864 N 81.485 W 0 G B 1.5 93 6 WEST VIRGINIA. mbLg 2.9 (GS). 30 km (15 miles) WNW of Beckley. 15 20 00 55.7 43.592 N 105.113 W 0 G A 1.0 82 22 WYOMING. ML 3.3 (EXP). 80 km (50 miles) WSW of Newcastle. 15 21 08 56.8 43.736 N 105.207 W 0 G A 1.0 73 28 WYOMING. ML 3.3 (GS). 65 km (40 miles) SSE of Gillette. 16 00 17 29.7* 43.794 N 105.281 W 0 G B 0.9 114 8 WYOMING. ML 2.9 (GS). 60 km (35 miles) SSE of Gillette. 16 21 01 35.9 43.754 N 105.296 W 0 G A 1.0 70 26 WYOMING. ML 3.0 (GS). 60 km (40 miles) SSE of Gillette. 18 21 04 54.6* 44.024 N 105.265 W 0 G B 2.1 99 16 WYOMING. ML 2.7 (GS). 35 km (20 miles) SSE of Gillette. 18 23 00 30.1 43.628 N 105.275 W 0 G A 1.4 51 40 WYOMING. ML 3.0 (GS). 75 km (45 miles) SSE of Gillette. 22 22 07 00.8 43.755 N 105.261 W 0 G A 0.9 51 17 WYOMING. ML 2.9 (GS). 65 km (40 miles) SSE of Gillette. 24 18 15 25.8? 44.08 N 105.43 W 0 G C 1.0 136 5 WYOMING. ML 2.5 (GS). 25 km (15 miles) SSE of Gillette. 24 21 03 11.1 43.812 N 105.213 W 0 G A 0.9 51 36 WYOMING. ML 3.1 (GS). 60 km (35 miles) SSE of Gillette. 27 23 43 15.0 43.725 N 105.257 W 0 G A 0.5 96 18 WYOMING. ML 2.6 (GS). 65 km (40 miles) SSE of Gillette. 28 17 05 35.4 45.180 N 106.824 W 0 G A 1.2 65 24 EASTERN MONTANA. ML 2.8 (GS). 45 km (30 miles) NNE of Sheridan. 29 23 39 15.5 43.817 N 105.209 W 0 G A 1.0 51 34 WYOMING. ML 2.9 (GS). 60 km (35 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.
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