Bulletin: April 2007

 
 
 
 
 
U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  4-07-EXP
GEOLOGICAL SURVEY                                                                                        JUN 25, 2007
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                         APRIL 2007
 
 
  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 02 13.6  43.709 N  105.231 W   0 G           A 0.8   51   33  WYOMING. ML 3.2 (GS). 70 km (40 miles) SSE of Gillette.
05  18 09 36.2  43.798 N  105.227 W   0 G           A 0.8  113   30  WYOMING. ML 3.2 (GS). 60 km (40 miles) SSE of Gillette.
06  18 35 02.1  44.177 N  105.204 W   0 G           A 1.5   90   16  WYOMING. ML 2.9 (GS). 25 km (15 miles) ESE of Gillette.
06  22 08 57.2  40.266 N  107.674 W   0 G           A 1.4   78   13  COLORADO. ML 2.5 (GS). 30 km (20 miles) SSW of Craig.
09  23 01 01.3* 43.622 N  105.605 W   0 G           B 1.4  107   10  WYOMING. ML 3.0 (GS). 60 km (35 miles) ENE of Midwest.
11  20 16 50.0  43.804 N  105.186 W   0 G           A 1.2  115   22  WYOMING. ML 3.3 (GS). 60 km (40 miles) SSE of Gillette.
14  23 45 12.2* 43.696 N  105.187 W   0 G           B 1.4  198   13  WYOMING. ML 2.6 (GS). 70 km (45 miles) SSE of Gillette.
16  18 07 31.0  43.698 N  105.199 W   0 G           A 0.8  121   23  WYOMING. ML 3.3 (GS). 70 km (45 miles) SSE of Gillette.
21  15 59 00.9  43.551 N  105.093 W   0 G           A 1.5  133   20  WYOMING. ML 3.2 (GS). 80 km (50 miles) WSW of Newcastle.
28  18 04 03.3  43.801 N  105.202 W   0 G           A 0.9   94   49  WYOMING. ML 3.4 (GS). 60 km (35 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.

Routine U.S. Mining Seismicity Home Page | Goal and Scope of the Bulletin | Evidence used in Identifying Routine Mining Seismicity | Explanation of Catalog Listings | Mining Seismicity Source Regions