Bulletin: September 2011

 
U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  9-11-EXP
GEOLOGICAL SURVEY                                                                                        DEC  6, 2011
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                       SEPTEMBER 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                                                
 
03  17 14 32.9  44.040 N  105.329 W   0 G           A 0.6   97   12  WYOMING. ML 3.0 (GS). 31 km (19 miles) SSE of Gillette.
03  22 47 22.1  45.822 N  106.940 W   0 G           A 1.4   94   17  EASTERN MONTANA. ML 2.8 (GS). 26 km (16 miles) WSW of
                                                                      Colstrip.
04  23 07 19.7  43.624 N  106.229 W   0 G           A 1.2  160   13  WYOMING. ML 2.7 (GS). 51 km (32 miles) NNE of Midwest.
04  23 16 44.5  44.034 N  105.022 W   0 G           A 1.3  151   15  WYOMING. ML 2.7 (GS). 48 km (30 miles) SE of Gillette.
06  22 21 47.6  45.088 N  106.962 W   0 G           A 1.2  111   12  EASTERN MONTANA. ML 2.6 (GS). 32 km (20 miles) N of
                                                                      Sheridan.
08  19 01 57.4  43.645 N  105.081 W   0 G           A 1.7   81   22  WYOMING. ML 3.0 (GS). 73 km (45 miles) WSW of Newcastle.
12  20 28 45.5* 41.112 N  112.704 W   0 G           B 2.1  113    7  UTAH. ML 2.0 (GS). 63 km (39 miles) W of Ogden.
15  22 01 48.2  40.708 N  109.471 W   0 G           A 0.9   90   19  UTAH. ML 2.9 (GS). ML 2.9 (GS).
15  22 07 06.1* 43.414 N  105.815 W   0 G           B 1.1  184    8  WYOMING. ML 2.5 (GS). 38 km (23 miles) E of Midwest.
17  21 03 29.4  43.845 N  105.232 W   0 G           A 0.9   85   15  WYOMING. ML 3.0 (GS). 55 km (34 miles) SSE of Gillette.
18  23 10 10.6* 43.221 N  104.700 W   0 G           B 1.4  203    7  WYOMING. ML 2.6 (GS). 76 km (47 miles) NE of Douglas.
20  22 30 36.6  43.575 N  105.228 W   0 G           A 1.5   51   26  WYOMING. mbLg 2.9 (GS). 83 km (52 miles) SSE of
                                                                      Gillette.
22  20 04 02.4* 43.845 N  105.343 W   0 G           B 2.2   53   23  WYOMING. ML 3.2 (GS). 51 km (32 miles) SSE of Gillette.
24  19 19 03.4  43.569 N  105.145 W   0 G           A 0.9   99   18  WYOMING. ML 3.1 (GS). 82 km (51 miles) WSW of Newcastle.
24  21 10 18.7* 43.967 N  105.492 W   0 G           B 0.6  205    9  WYOMING. ML 2.8 (GS). 36 km (22 miles) S of Gillette.
25  20 19 07.8* 44.052 N  105.397 W   0 G           B 1.5   95    8  WYOMING. mbLg 2.5 (GS). 28 km (17 miles) SSE of
                                                                      Gillette.
29  19 05 36.3  43.709 N  105.050 W   0 G           A 1.6  126   17  WYOMING. ML 3.3 (GS). 71 km (44 miles) SSE of Gillette.
29  21 54 04.8  40.601 N  109.362 W   0 G           A 1.2   75   18  UTAH. ML 3.0 (GS). 21 km (13 miles) NE of Vernal.
 

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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