Bulletin: April 2002

 
 
 
 
U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  4-02-EXP
GEOLOGICAL SURVEY                                                                                        MAY 25, 2002
 
                                      ROUTINE MINING SEISMICITY IN THE UNITED STATES
 
                                                         APRIL 2002
 
 
  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  01 02 58.8  40.271 N  107.808 W    0 G           1.4   98   17  COLORADO. ML 2.7 (GS). 20 miles (35 km) SW of Craig.
01  21 43 38.6  35.607 N  108.865 W    0 G           1.1   88    9  NEW MEXICO. ML 2.2 (GS). 10 miles (15 km) NW of Gallup.
02  20 02 10.4  41.726 N  108.474 W    0 G           1.3  128   23  WYOMING. ML 3.2 (GS). 40 miles (65 km) ENE of Rock
                                                                     Springs.
03  19 56 09.7  32.786 N  109.219 W    0 G           0.7  193   11  EASTERN ARIZONA. ML 2.8 (GS). 30 milse (45 km) E of
                                                                     Safford.
04  23 07 19.5  40.308 N  107.775 W    0 G           0.5  135   10  COLORADO. ML 3.1 (GS). 20 miles (30 km) SW of Craig.
05  23 02 53.0  40.392 N  107.807 W    0 G           0.9  138   15  COLORADO. ML 2.6 (GS). 15 miles (25 km) WNW of Craig.
06  18 13 28.6* 43.580 N  104.855 W    0 G           1.6  149   12  WYOMING. ML 3.0 (GS). 40 miles (60 km) WSW of Newcastle.
08  21 21 44.6  46.726 N  122.793 W    0 G           1.1  117   16  WASHINGTON. ML 2.4 (GS). 10 miles (10 km) E of
                                                                     Centralia.
09  16 18 23.4  41.780 N  108.683 W    0 G           0.6   86   23  WYOMING. ML 2.6 (GS). 30 miles (50 km) ENE of Rock
                                                                     Springs.
09  22 04 46.8  40.322 N  107.764 W    0 G           0.7   71   19  COLORADO. ML 3.2 (GS). 15 miles (25 km) SW of Craig.
10  17 06 01.1  41.719 N  110.698 W    0 G           0.2  106   17  WYOMING. ML 1.9 (GS). 35 miles (55 km) NNE of Evanston.
10  18 31 32.3  44.208 N  105.265 W    0 G           1.0  140   20  WYOMING. ML 3.3 (GS). 15 miles (20 km) ESE of Gillette.
10  20 03 40.5  43.824 N  105.152 W    0 G           1.2  143   23  WYOMING. ML 3.2 (GS). 35 miles (60 km) SSE of Gillette.
10  21 34 58.5  46.732 N  122.843 W    0 G           0.4  134    6  WASHINGTON. 5 miles (10 km) ENE of Centralia.
11  21 47 49.5  32.934 N  109.230 W    0 G           0.9  119    7  EASTERN ARIZONA. ML 2.8 (GS). 30 miles (45 km) ENE of
                                                                     Safford.
12  17 25 39.3  41.804 N  108.682 W    0 G           0.9   82   26  WYOMING. ML 2.6 (GS). 30 miles (50 km) ENE of Rock
                                                                     Springs.
15  18 03 56.1  43.643 N  105.254 W    0 G           1.0  123   18  WYOMING. ML 3.2 (GS). 45 miles (75 km) SSE of Gillette.
16  18 00 07.7  43.671 N  105.250 W    0 G           0.7  126   20  WYOMING. ML 3.4 (GS). 45 miles (70 km) SSE of Gillette.
16  20 14 57.7  44.231 N  105.351 W    0 G           0.8  102   22  WYOMING. ML 3.2 (GS). 10 miles (15 km) ESE of Gillette.
16  22 48 35.5  32.989 N  109.316 W    0 G           0.6  142   11  EASTERN ARIZONA. ML 2.7 (GS). 25 miles (40 km) ENE of
                                                                     Safford.
17  20 43 33.2  41.821 N  108.898 W    0 G           0.7  154   13  WYOMING. ML 2.3 (GS). 20 miles (35 km) NE of Rock
                                                                     Springs.
17  22 23 00.5  46.703 N  122.777 W    0 G           0.6  113   10  WASHINGTON. ML 2.0 (GS). 10 miles (15 km) E of
                                                                     Centralia.
18  17 27 50.7  41.716 N  108.649 W    0 G           1.0  152   24  WYOMING. ML 3.1 (GS). 30 miles (50 km) ENE of Rock
                                                                     Springs.
18  20 37 08.2* 44.094 N  105.321 W    0 G           1.3  241   22  WYOMING. ML 3.3 (GS). 15 miles (25 km) SSE of Gillette.
18  20 45 31.5  46.715 N  122.788 W    0 G           1.2  115   10  WASHINGTON. ML 2.3 (GS). 10 miles (15 km) E of
                                                                     Centralia.
19  20 21 14.1  33.064 N  109.374 W    0 G           0.8  137   13  EASTERN ARIZONA. ML 2.7 (GS). 25 miles (40 km) NE of
                                                                     Safford.
20  22 18 29.3  41.830 N  108.718 W    0 G           1.1   82   25  WYOMING. ML 2.7 (GS). 30 miles (50 km) ENE of Rock
                                                                     Springs.
22  21 46 14.2  46.733 N  122.820 W    0 G           0.8  132    7  WASHINGTON. 5 miles (10 km) ENE of Centralia.
23  18 09 12.6  43.760 N  105.080 W    0 G           1.0  108   27  WYOMING. ML 3.4 (GS). 40 miles (70 km) SSE of Gillette.
24  21 59 05.4* 32.514 N  108.998 W    0 G           1.1  212    5  NEW MEXICO. ML 2.7 (GS). 20 miles (35 km) NW of
                                                                     Lordsburg.
26  22 11 32.0  40.316 N  107.907 W    0 G           0.8  157   14  COLORADO. ML 3.0 (GS). 25 miles (35 km) SW of Craig.
28  21 44 40.5  42.879 N  111.329 W    0 G           0.9   80   20  EASTERN IDAHO. ML 1.8 (GS). 25 miles (35 km) WNW of
                                                                     Afton.
29  20 28 49.7  41.885 N  108.818 W    0 G           1.1  160   20  WYOMING. ML 2.4 (GS). 30 miles (45 km) NE of Rock
                                                                     Springs.
30  18 08 01.7  40.366 N  107.788 W    0 G           0.9  152   13  COLORADO. ML 2.5 (GS). 15 miles (25 km) SW of Craig.
30  19 26 40.9  41.113 N  112.851 W    0 G           0.6   75   17  UTAH. ML 1.8 (GS). 45 miles (75 km) W of Ogden.

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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