Bulletin: March 2004

U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  3-04-EXP
GEOLOGICAL SURVEY                                                                                        MAY  4, 2004
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                         MARCH 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                                                
 
04  17 28 46.8  44.096 N  105.315 W   0 G           A 1.0  119   14  WYOMING. ML 3.2 (GS). 25 km (15 miles) SE of Gillette.
04  22 01 59.0  43.820 N  105.327 W   0 G           A 1.0  109   11  WYOMING. ML 3.1 (GS). 55 km (35 miles) SSE of Gillette.
05  19 03 45.5  43.763 N  105.230 W   0 G           A 0.8  140   17  WYOMING. ML 3.3 (GS). 65 km (40 miles) SSE of Gillette.
06  17 50 10.9  44.076 N  105.184 W   0 G           A 0.7   97   23  WYOMING. ML 3.3 (GS). 35 km (25 miles) SE of Gillette.
06  19 05 59.5  43.746 N  105.279 W   0 G           A 1.3  114   12  WYOMING. ML 3.1 (GS). 65 km (40 miles) SSE of Gillette.
07  21 26 56.7  43.409 N  105.163 W   0 G           A 1.1  137   14  WYOMING. ML 3.1 (GS). 75 km (45 miles) NNE of Douglas.
08  18 16 31.9  44.183 N  105.341 W   0 G           A 1.0   87   21  WYOMING. ML 3.4 (GS). 20 km (10 miles) SE of Gillette.
10  19 01 56.4  43.729 N  105.238 W   0 G           A 0.9  116   24  WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette.
                                                                      ML 3.4 (GS).
10  23 19 55.2* 41.196 N  117.184 W   0 G           B 0.9  121    8  NEVADA. ML 2.3 (GS). 55 km (35 miles) ENE of Winnemucca.
12  19 38 11.2  43.698 N  105.148 W   0 G           A 1.0  120   14  WYOMING. ML 3.0 (GS). 70 km (45 miles) SSE of Gillette.
12  20 35 21.7  43.729 N  105.289 W   0 G           A 0.9  115   17  WYOMING. ML 3.1 (GS). 65 km (40 miles) SSE of Gillette.
13  21 04 12.5  43.915 N  105.244 W   0 G           A 1.4  105   21  WYOMING. ML 3.0 (GS). 45 km (30 miles) SSE of Gillette.
19  22 12 51.4  43.780 N  105.248 W   0 G           A 0.9  113   25  WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette.
20  21 44 51.7* 43.576 N  105.172 W   0 G           B 0.3  129    7  WYOMING. ML 3.0 (GS). 85 km (50 miles) WSW of Newcastle.
25  19 04 46.5  43.804 N  105.228 W   0 G  4.2      A 0.8   44   37  WYOMING. ML 3.5 (GS). 60 km (35 miles) SSE of Gillette.
29  20 00 43.5  45.247 N  106.882 W   0 G  4.6      A 1.2   66   12  EASTERN MONTANA. ML 3.4 (GS). 50 km (30 miles) N of
                                                                      Sheridan.

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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