Bulletin: April 2007
U.S. DEPARTMENT OF THE INTERIOR NO. 4-07-EXP GEOLOGICAL SURVEY JUN 25, 2007 ROUTINE MINING SEISMICITY IN THE UNITED STATES APRIL 2007 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 02 13.6 43.709 N 105.231 W 0 G A 0.8 51 33 WYOMING. ML 3.2 (GS). 70 km (40 miles) SSE of Gillette. 05 18 09 36.2 43.798 N 105.227 W 0 G A 0.8 113 30 WYOMING. ML 3.2 (GS). 60 km (40 miles) SSE of Gillette. 06 18 35 02.1 44.177 N 105.204 W 0 G A 1.5 90 16 WYOMING. ML 2.9 (GS). 25 km (15 miles) ESE of Gillette. 06 22 08 57.2 40.266 N 107.674 W 0 G A 1.4 78 13 COLORADO. ML 2.5 (GS). 30 km (20 miles) SSW of Craig. 09 23 01 01.3* 43.622 N 105.605 W 0 G B 1.4 107 10 WYOMING. ML 3.0 (GS). 60 km (35 miles) ENE of Midwest. 11 20 16 50.0 43.804 N 105.186 W 0 G A 1.2 115 22 WYOMING. ML 3.3 (GS). 60 km (40 miles) SSE of Gillette. 14 23 45 12.2* 43.696 N 105.187 W 0 G B 1.4 198 13 WYOMING. ML 2.6 (GS). 70 km (45 miles) SSE of Gillette. 16 18 07 31.0 43.698 N 105.199 W 0 G A 0.8 121 23 WYOMING. ML 3.3 (GS). 70 km (45 miles) SSE of Gillette. 21 15 59 00.9 43.551 N 105.093 W 0 G A 1.5 133 20 WYOMING. ML 3.2 (GS). 80 km (50 miles) WSW of Newcastle. 28 18 04 03.3 43.801 N 105.202 W 0 G A 0.9 94 49 WYOMING. ML 3.4 (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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