Bulletin: April 2005

U.S. DEPARTMENT OF THE INTERIOR                                                                         NO. 5-145-EXP
GEOLOGICAL SURVEY                                                                                        MAY 25, 2005
 
                                      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                                               
 
APR 2005
05  18 11 24.1  43.711 N  105.242 W   0 G           A 1.0  119   24  WYOMING. ML 3.2 (GS). 70 km (40 miles) SSE of Gillette.
09  18 06 06.6  43.792 N  105.258 W   0 G           A 0.9  114   29  WYOMING. ML 3.1 (GS). 60 km (35 miles) SSE of Gillette.
17  20 02 34.6  43.549 N  105.201 W   0 G           A 1.0  126   15  WYOMING. ML 3.0 (GS). 85 km (55 miles) SSE of Gillette.
22  20 02 08.5  44.078 N  105.441 W   0 G           A 0.9   98   21  WYOMING. ML 3.2 (GS). 20 km (15 miles) SSE of Gillette.
24  18 07 47.3  43.571 N  105.270 W   0 G           A 1.0  125   14  WYOMING. ML 3.2 (GS). 80 km (50 miles) SSE of Gillette.
26  18 05 54.3  43.754 N  105.239 W   0 G           A 1.0  138   22  WYOMING. ML 3.2 (GS). 65 km (40 miles) SSE of Gillette.
26  18 15 01.7  43.740 N  105.233 W   0 G           A 0.9  116   34  WYOMING. ML 3.2 (GS). 65 km (40 miles) SSE of Gillette.
29  19 12 44.9  43.956 N  105.422 W   0 G           A 1.1  100   26  WYOMING. ML 3.1 (GS). 40 km (25 miles) S of Gillette.
30  18 03 32.0  43.738 N  105.253 W   0 G           A 0.9  123   33  WYOMING. ML 3.3 (GS). 65 km (40 miles) SSE of Gillette.
30  20 03 28.0  43.710 N  105.289 W   0 G           A 0.8  193   29  WYOMING. ML 3.2 (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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