Bulletin: August 2011

 
U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  8-11-EXP
GEOLOGICAL SURVEY                                                                                        OCT 28, 2011
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                        AUGUST 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                                                
 
04  23 04 28.6* 44.929 N  105.886 W   0 G           B 1.4  217   11  WYOMING. ML 2.6 (GS). 69 km (43 miles) SSW of Broadus.
04  23 21 00.3  40.544 N  109.469 W   0 G           A 1.3   68   17  UTAH. ML 3.0 (GS). 11 km (7 miles) NNE of Vernal.
08  23 54 54.3  45.058 N  106.867 W   0 G           A 0.8   83   14  EASTERN MONTANA. ML 2.5 (GS). 30 km (19 miles) NNE of
                                                                      Sheridan.
12  22 58 08.5  39.954 N  106.853 W   0 G           A 1.0   95   11  COLORADO. ML 2.7 (GS). 54 km (33 miles) NW of Vail.
13  19 09 00.7  43.662 N  105.181 W   0 G           A 0.9   51   51  WYOMING. ML 3.4 (GS). 75 km (47 miles) SSE of Gillette.
14  23 30 56.6* 43.645 N  104.959 W   0 G           B 1.3  134    6  WYOMING. ML 2.6 (GS). 65 km (41 miles) WSW of Newcastle.
17  16 29 19.9? 47.59  N   92.51  W   0 G           C 0.9  103    5  MINNESOTA. mbLg 3.3 (GS). 8 km (5 miles) NNE of
                                                                      Virginia.
18  20 04 18.4  43.637 N  105.158 W   0 G           A 1.3   79   24  WYOMING. ML 3.2 (GS). 79 km (49 miles) SSE of Gillette.
19  20 09 00.9  43.674 N  105.229 W   0 G           A 1.1   75   23  WYOMING. mbLg 3.0 (GS). 72 km (45 miles) SSE of
                                                                      Gillette.
19  22 31 07.2  43.586 N  104.937 W   0 G           A 1.4   89   11  WYOMING. ML 2.7 (GS). 66 km (41 miles) WSW of Newcastle.
20  18 01 04.9  43.800 N  105.263 W   0 G           A 0.8   51   45  WYOMING. ML 3.4 (GS). 58 km (36 miles) SSE of Gillette.
20  21 20 18.0  46.000 N  106.644 W   0 G           A 0.8  111   10  EASTERN MONTANA. ML 2.8 (GS). 14 km (9 miles) NNW of
                                                                      Colstrip.
21  19 07 24.4  43.959 N  104.225 W   0 G           A 0.8  154   12  WYOMING. mbLg 2.7 (GS). 12 km (7 miles) N of Newcastle.
21  19 32 40.2  43.561 N  105.088 W   0 G           A 1.1  152   14  WYOMING. mbLg 3.0 (GS). 78 km (49 miles) WSW of
                                                                      Newcastle.
21  20 03 54.0? 43.90  N  105.22  W   0 G           C 2.7  281    8  WYOMING. mbLg 2.7 (GS). 49 km (30 miles) SSE of
                                                                      Gillette.
25  20 08 07.2  43.808 N  105.237 W   0 G           A 1.1   51   24  WYOMING. ML 3.1 (GS). 58 km (36 miles) SSE of Gillette.
28  00 06 49.3* 43.620 N  104.524 W   0 G           B 0.9  217   12  WYOMING. ML 2.8 (GS). 37 km (23 miles) SW of Newcastle.
 

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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