U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  5-09-EXP
GEOLOGICAL SURVEY                                                                                        JUL 31, 2009
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                          MAY 2009
 
 
  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                                                
 
01  19 33 03.8  36.379 N  110.273 W   0 G           A 1.3   69   20  ARIZONA. ML 2.7 (GS). 40 km (25 miles) S of Kayenta.
02  17 04 41.3  43.799 N  105.251 W   0 G           A 1.0   51   31  WYOMING. ML 3.0 (GS). 60 km (35 miles) SSE of Gillette.
02  20 00 50.2  43.664 N  105.193 W   0 G           A 1.1   77   34  WYOMING. ML 3.1 (GS). 75 km (45 miles) SSE of Gillette.
04  19 06 35.8  43.674 N  105.159 W   0 G           A 1.0   77   23  WYOMING. ML 3.1 (GS). 75 km (45 miles) SSE of Gillette.
05  00 58 20.8  32.894 N  109.241 W   0 G           A 0.5  186   12  ARIZONA. ML 2.6 (GS). 20 km (10 miles) S of Clifton.
05  21 09 15.9* 43.858 N  105.407 W   0 G           B 3.0  106   18  WYOMING. ML 3.2 (GS). 50 km (30 miles) S of Gillette.
12  22 38 01.7* 37.318 N   83.343 W   0 G           B 0.6  100    9  EASTERN KENTUCKY. mbLg 2.8 (GS). 15 km (10 miles) WNW
                                                                      of Hazard.
16  20 56 21.3  43.733 N  105.243 W   0 G           A 0.8   70   26  WYOMING. ML 2.9 (GS). 65 km (40 miles) SSE of Gillette.
20  22 02 40.6  40.158 N  107.733 W   0 G           A 0.7   83   22  COLORADO. ML 2.8 (GS). 20 km (10 miles) NE of Meeker.
23  16 42 13.1  43.563 N  105.332 W   0 G           A 0.9   53   26  WYOMING. ML 3.0 (GS). 80 km (50 miles) ENE of Midwest.
23  20 04 08.9  43.818 N  105.155 W   0 G           A 1.3   52   44  WYOMING. ML 3.3 (GS). 60 km (35 miles) SSE of Gillette.
24  20 01 03.4  43.739 N  105.243 W   0 G           A 1.2   51   46  WYOMING. ML 3.4 (GS). 65 km (40 miles) SSE of Gillette.
27  18 02 22.3  43.616 N  105.246 W   0 G           A 1.4   51   33  WYOMING. ML 3.2 (GS). 80 km (50 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.