Bulletin: January 2004

U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  1-04-EXP
GEOLOGICAL SURVEY                                                                                        MAR  1, 2004
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                        JANUARY 2004
 
 
  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  19 05 38.3  43.769 N  105.206 W   0 G           A 1.3  117   16  WYOMING. ML 3.2 (GS). 65 km (40 miles) SSE of Gillette.
04  08 56 14.2  40.455 N  106.868 W   1 G           A 0.8   94   11  COLORADO. ML 2.5 (GS). NEAR Steamboat Springs.
                                                                      Suspected long-wall mine roof-collapse.
08  19 06 10.2* 43.921 N  105.385 W   0 G           B 1.8  109    8  WYOMING. ML 2.9 (GS). 50 km (30 miles) SSE of Gillette.
11  19 01 57.4  43.774 N  105.256 W   0 G           A 0.6  113   22  WYOMING. ML 3.2 (GS). 60 km (40 miles) SSE of Gillette.
16  19 37 16.9  44.109 N  105.324 W   0 G           A 0.9  147   14  WYOMING. ML 3.1 (GS). 25 km (15 miles) SE of Gillette.
16  21 06 23.7  43.756 N  105.257 W   0 G           A 0.9  122   17  WYOMING. ML 3.2 (GS). 60 km (40 miles) SSE of Gillette.
17  21 04 28.2  43.826 N  105.245 W   0 G           A 0.7  103   25  WYOMING. ML 3.8 (GS). 55 km (35 miles) SSE of Gillette.
19  19 01 34.2* 43.737 N  105.140 W   0 G           B 1.2  172   10  WYOMING. ML 2.7 (GS). 70 km (40 miles) SSE of Gillette.
20  21 08 35.3  44.164 N  105.108 W   0 G  3.8      A 0.8  129   36  WYOMING. ML 4.0 (GS). 35 km (20 miles) ESE of Gillette.
24  19 02 50.0  43.795 N  105.234 W   0 G           A 0.9  142   30  WYOMING. ML 3.4 (GS). 60 km (35 miles) SSE of Gillette.
26  19 05 49.6* 43.113 N  104.685 W   0 G           B 1.4  155    9  WYOMING. ML 2.9 (GS). 70 km (40 miles) NE of Douglas.
27  19 00 45.6  43.787 N  105.176 W   0 G           A 1.3   71   11  WYOMING. ML 3.1 (GS). 60 km (40 miles) SSE of Gillette.
30  17 00 48.2  41.849 N  108.699 W   0 G           A 1.2   89   15  WYOMING. ML 2.5 (GS). 50 km (30 miles) NE of Rock
                                                                      Springs.
30  19 03 38.8  43.854 N  105.333 W   0 G           A 0.8  108   19  WYOMING. ML 3.2 (GS). 50 km (30 miles) SSE of Gillette.
31  19 03 33.7  43.723 N  105.200 W   0 G           A 1.1   73   22  WYOMING. ML 3.0 (GS). 65 km (40 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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