Bulletin: July 2011
U.S. DEPARTMENT OF THE INTERIOR NO. 7-11-EXP
GEOLOGICAL SURVEY SEP 23, 2011
ROUTINE MINING SEISMICITY IN THE UNITED STATES
JULY 2011
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
01 17 37 04.2 43.721 N 105.230 W 0 G A 0.9 117 20 WYOMING. ML 3.0 (GS). 67 km (42 miles) SSE of Gillette.
07 21 05 54.2 43.797 N 105.114 W 0 G A 1.3 97 21 WYOMING. ML 3.2 (GS). 63 km (39 miles) SSE of Gillette.
07 21 22 28.3* 45.375 N 106.676 W 0 G B 1.4 109 11 EASTERN MONTANA. ML 2.6 (GS). 57 km (35 miles) S of
Colstrip.
09 22 02 56.8 43.971 N 104.965 W 0 G A 1.1 94 15 WYOMING. ML 3.1 (GS). 56 km (35 miles) SE of Gillette.
11 19 10 14.4 43.652 N 105.370 W 0 G A 1.3 105 14 WYOMING. ML 2.9 (GS). 73 km (45 miles) S of Gillette.
11 20 05 05.4 44.193 N 105.688 W 0 G A 0.9 161 12 WYOMING. ML 3.3 (GS). 18 km (11 miles) SW of Gillette.
14 17 07 17.3* 43.452 N 105.314 W 0 G B 1.5 129 8 WYOMING. ML 1.9 (GS). 76 km (47 miles) N of Douglas.
14 18 50 39.3 43.999 N 105.300 W 0 G A 1.2 58 17 WYOMING. ML 3.0 (GS). 36 km (22 miles) SSE of Gillette.
14 20 03 19.6 43.895 N 105.464 W 0 G A 1.5 102 15 WYOMING. ML 3.0 (GS). 44 km (27 miles) S of Gillette.
14 23 28 13.0 40.512 N 109.468 W 0 G A 1.4 95 18 UTAH. ML 2.8 (GS). 8 km (5 miles) NE of Vernal.
15 23 15 05.0* 44.448 N 105.079 W 0 G B 1.4 132 9 WYOMING. ML 2.7 (GS). 38 km (24 miles) ENE of Gillette.
21 23 00 45.2* 44.271 N 105.003 W 0 G B 1.2 151 9 WYOMING. ML 2.8 (GS). 39 km (24 miles) E of Gillette.
22 23 02 40.1 37.135 N 81.787 W 0 G A 1.0 78 15 VIRGINIA. mbLg 3.5 (GS). 52 km (32 miles) WSW of
Bluefield.
23 18 52 00.5 43.499 N 105.006 W 0 G A 1.6 109 55 WYOMING. ML 3.3 (GS). 75 km (47 miles) WSW of Newcastle.
29 21 07 09.8 43.741 N 105.216 W 0 G A 1.4 104 23 WYOMING. ML 3.4 (GS). 65 km (41 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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