U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  8-06-EXP
GEOLOGICAL SURVEY                                                                                        OCT 25, 2006
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                        AUGUST 2006
 
 
  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  18 06 55.0  43.786 N  105.189 W   0 G           A 0.8  116   26  WYOMING. ML 3.3 (GS). 60 km (40 miles) SSE of Gillette.
07  20 05 35.0  43.685 N  105.133 W   0 G           A 1.1  124   20  WYOMING. ML 3.4 (GS). 75 km (45 miles) SSE of Gillette.
09  17 21 25.0  44.133 N  105.273 W   0 G           A 0.6   92   22  WYOMING. ML 3.4 (GS). 25 km (15 miles) SE of Gillette.
09  21 02 21.1  43.743 N  105.247 W   0 G           A 0.9   96   35  WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette.
09  23 36 33.7  43.581 N  105.092 W   0 G           A 1.4  132   15  WYOMING. ML 3.2 (GS). 80 km (50 miles) WSW of
                                                                      Newcastle. ML 3.2 (GS). 80 km (50 miles) WSW of Newcastle.
14  18 08 48.8  43.749 N  105.244 W   0 G           A 0.7  117   24  WYOMING. ML 3.2 (GS). 65 km (40 miles) SSE of Gillette.
15  22 05 53.1  39.993 N  107.665 W   0 G           A 1.5  102   13  COLORADO. ML 2.8 (GS). ML 2.8 (GS). 20 km (15 miles) ESE of Meeker.
16  14 28 59.4  43.728 N  105.194 W   0 G           A 1.0  141   22  WYOMING. ML 3.1 (GS). 70 km (40 miles) SSE of Gillette.
25  18 54 36.6  43.584 N  105.187 W   0 G           A 0.6  144   17  WYOMING. ML 3.4 (GS). 80 km (50 miles) SSE of Gillette.
29  18 00 49.9* 43.502 N  104.902 W   0 G           B 1.4  143   12  WYOMING. ML 3.3 (GS). 70 km (45 miles) SW of Newcastle.
31  19 03 54.1  43.685 N  105.225 W   0 G           A 1.0   97   27  WYOMING. ML 3.3 (GS). 75 km (45 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.