Bulletin: July 2004

U.S. DEPARTMENT OF THE INTERIOR                                                                         NO. 4-240-EXP
GEOLOGICAL SURVEY                                                                                        AUG 27, 2004
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
 
  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                                               
 
JUL 2004
07  18 04 36.1  43.735 N  105.268 W   0 G           A 1.1  115   16  WYOMING. ML 3.0 (GS). 65 km (40 miles) SSE of Gillette.
24  19 02 26.9  43.765 N  105.163 W   0 G           A 1.2  141   33  WYOMING. ML 3.3 (GS). 65 km (40 miles) SSE of Gillette.
31  19 09 39.4  43.614 N  105.162 W   0 G           A 1.4  144   16  WYOMING. ML 3.2 (GS). 80 km (50 miles) SSE of Gillette.
31  20 05 41.8  43.782 N  105.189 W   0 G           A 1.1  143   17  WYOMING. ML 3.3 (GS). 60 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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