Bulletin: December 2003

U.S. DEPARTMENT OF THE INTERIOR                                                                         NO. 12-03-EXP 
GEOLOGICAL SURVEY                                                                                        JAN 29, 2004
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                       DECEMBER 2003
 
 
  ORIGIN TIME       GEOGRAPHIC       DEPTH MAGNITUDE  SD  GAP  NO.   F-E REGION, CONTRIBUTED
MAGNITUDES AND COMMENTS
      UTC          COORDINATES                GS              
STA                                                
DAY HR MN SEC     LAT       LONG            mb  MS            
USED                                                
 
01  18 00 45.3  41.833 N  108.500 W    0 G           1.1   93   16  WYOMING. ML 2.6 (GS). 65 km
(40 miles) ENE of Rock
                                                                     Springs.
08  19 03 35.6  43.838 N  105.277 W    0 G           1.1  111   19  WYOMING. ML 3.2 (GS). 55 km
(35 miles) SSE of Gillette.
11  22 00 28.0* 44.359 N  105.699 W    0 G           1.9  121    8  WYOMING. ML 2.8 (GS). 15 km
(10 miles) WNW of Gillette.
13  21 08 49.0  44.141 N  105.357 W    0 G           1.2   90   26  WYOMING. 15 km (10 miles) SE
of Gillette.
16  19 05 47.7  43.724 N  105.261 W    0 G           1.0  120   22  WYOMING. ML 3.3 (GS). 65 km
(40 miles) SSE of Gillette.
17  21 27 34.6  44.153 N  105.330 W    0 G           1.1   89   20  WYOMING. ML 3.0 (GS). 20 km
(10 miles) SE of Gillette.
20  20 30 50.8* 36.555 N  108.473 W    0 G           1.5  113    9  NEW MEXICO. 30 km (20 miles)
SW of Farmington.
21  16 01 37.9* 33.559 N  109.451 W    0 G           0.1   99    5  ARIZONA. ML 3.1 (GS). 60 km
(35 miles) NNW of Clifton.
                                                                     ML 3.1 (GS).
21  16 08 51.0* 33.347 N  109.463 W    0 G           0.9  171    6  ARIZONA. ML 3.8 (GS). 35 km
(25 miles) NNW of Clifton.
                                                                     ML 3.8 (GS).
24  19 13 27.9  43.783 N  105.228 W    0 G           1.2   73   16  WYOMING. ML 3.0 (GS). 60 km
(40 miles) SSE of Gillette.
26  19 04 02.1  43.813 N  105.306 W    0 G           1.2  112   11  WYOMING. ML 3.1 (GS). 60 km
(35 miles) SSE of Gillette.
28  18 59 41.1  43.743 N  105.257 W    0 G           0.6  115   10  WYOMING. ML 2.8 (GS). ML 2.8
(GS). 65 Kilometers (40
                                                                     miles ) south-southeast of
Gillette, Wyoming.
30  20 36 56.2  44.211 N  105.362 W    0 G           0.9   51   27  WYOMING. ML 3.6 (GS). 15 km
(10 miles) ESE 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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