Bulletin: December 1999

 
 
 
 
U.S. DEPARTMENT OF THE INTERIOR                                                                         NO. 12-99-EXP
GEOLOGICAL SURVEY                                                                                        JAN  8, 2000
 
                                     PROBABLE MINING EXPLOSIONS IN THE UNITED STATES
 
                                                       DECEMBER 1999
 
 
  ORIGIN TIME       GEOGRAPHIC       DEPTH MAGNITUDE  SD  NO.      REGION,  CONTRIBUTED  MAGNITUDES  AND  COMMENTS
      UTC          COORDINATES                GS          STA
DAY HR MN SEC     LAT       LONG            MB  Msz       USED
 
01  19 55 55.3* 32.732 N  109.216 W    0 G           1.6    7  EASTERN ARIZONA. ML 2.6 (GS). 30 miles ESE of Safford.
02  18 25 01.9* 32.716 N  109.126 W    0 G           0.4    8  EASTERN ARIZONA. ML 2.6 (GS). 35 miles ESE of Safford.
02  21 04 33.3* 35.655 N  108.979 W    0 G           0.7    5  NEW MEXICO. ML 1.9 (GS). 15 miles WNW of Gallup.
02  22 20 42.3? 33.01  N  109.11  W    0 G           0.4    6  EASTERN ARIZONA. ML 2.8 (GS). 35 miles ENE of Safford.
03  19 06 21.9* 32.725 N  109.126 W    0 G           0.7    7  EASTERN ARIZONA. ML 3.0 (GS). 35 miles ESE of Safford.
03  20 03 31.7* 43.669 N  105.247 W    0 G           1.1   11  WYOMING. ML 3.3 (GS). 45 miles SSE of Gillette.
03  20 19 36.3* 44.156 N  105.252 W    0 G           1.5   15  WYOMING. ML 3.2 (GS). 15 miles SE of Gillette.
03  21 03 48.9* 32.755 N  109.155 W    0 G           1.5    7  EASTERN ARIZONA. ML 2.6 (GS). 30 miles E of Safford.
03  21 17 10.2  35.363 N  107.554 W    0 G           0.7    8  NEW MEXICO. ML 1.9 (GS). 20 miles NE of Grants.
04  20 29 04.7  41.696 N  108.728 W    0 G           1.1   13  WYOMING. ML 2.4 (GS). 25 miles ENE of Rock Springs.
06  17 40 42.7* 32.460 N  108.962 W    0 G           1.3   11  NEW MEXICO. ML 3.0 (GS). 15 miles WNW of Lordsburg.
06  18 30 42.7* 32.574 N  109.050 W    0 G           0.8    6  EASTERN ARIZONA. ML 2.4 (GS). 25 miles NW of Lordsburg, New
                                                                Mexico.
06  21 08 05.3  36.462 N  110.384 W    0 G           0.8   14  EASTERN ARIZONA. ML 3.1 (GS). 20 miles SSW of Kayenta.
07  16 50 39.5  41.778 N  109.179 W    0 G           0.7   10  WYOMING. ML 2.0 (GS). 15 miles N of Rock Springs.
07  23 09 22.4? 39.97  N  108.18  W    0 G           2.5    7  COLORADO. ML 2.6 (GS). 35 miles E of Rangely.
08  20 09 03.7  32.867 N  109.269 W    0 G           0.4    8  EASTERN ARIZONA. ML 2.5 (GS). 25 miles E of Safford.
09  17 06 33.6  40.518 N  112.167 W    0 G           0.5   12  UTAH. ML 2.0 (GS). 10 miles E of Tooele.
09  19 54 48.1  41.850 N  108.737 W    0 G           1.0   16  WYOMING. ML 2.7 (GS). 30 miles NE of Rock Springs.
09  20 04 28.5* 43.744 N  105.318 W    0 G           1.0   13  WYOMING. ML 3.3 (GS). 40 miles SSE of Gillette.
09  21 04 03.9* 32.617 N  109.050 W    0 G           0.6    6  EASTERN ARIZONA. ML 2.8 (GS). 25 miles NW of Lordsburg, New
                                                                Mexico.
09  22 21 04.1  41.733 N  108.840 W    0 G           0.9   11  WYOMING. ML 2.6 (GS). 20 miles ENE of Rock Springs.
09  22 42 18.2  40.702 N  109.427 W    0 G           1.2   11  UTAH. ML 2.4 (GS). 20 miles NNE of Vernal.
10  12 47 11.4  38.891 N  107.557 W    0 G           0.8   10  COLORADO. ML 2.5 (GS). 35 miles NNE of Montrose.
10  19 04 00.3  40.286 N  107.813 W    0 G           0.7   17  COLORADO. ML 3.2 (GS). 20 miles SW of Craig.
10  21 07 35.1  43.741 N  105.309 W    0 G           1.0   13  WYOMING. ML 3.1 (GS). 40 miles SSE of Gillette.
10  21 58 01.2* 33.227 N  109.324 W    0 G           0.5    5  EASTERN ARIZONA. ML 3.1 (GS). 35 miles NE of Safford.
10  22 15 20.6* 46.768 N  122.789 W    0 G           0.7    5  WASHINGTON. MD 2.5 (GS). 10 miles ENE of Centralia.
10  22 44 51.6* 36.588 N  108.443 W    0 G           1.2    6  NEW MEXICO. ML 2.0 (GS). 15 miles SW of Farmingtion.
11  22 18 56.9* 42.003 N  108.784 W    0 G           1.2    9  WYOMING. ML 2.4 (GS). 35 miles NE of Rock Springs.
12  22 11 32.6  35.696 N  108.956 W    0 G           1.4   10  NEW MEXICO. ML 2.2 (GS). 15 miles NW of Gallup.
14  20 50 56.5? 32.81  N  108.96  W    0 G           1.1    8  NEW MEXICO. ML 3.3 (GS). 35 miles NNW of Lordsburg.
14  23 06 49.1  40.298 N  107.769 W    0 G           0.5   10  COLORADO. ML 2.4 (GS). 20 miles SW of Craig.
15  16 10 07.4  41.732 N  108.807 W    0 G           0.9   10  WYOMING. ML 2.1 (GS). 25 miles ENE of Rock Springs.
15  19 51 35.5* 32.562 N  109.196 W    0 G           0.6    8  EASTERN ARIZONA. ML 2.7 (GS). 30 miles WNW of Lordsburg, New
                                                                Mexico.
15  20 08 29.5  40.559 N  107.421 W    0 G           0.8   12  COLORADO. ML 2.3 (GS). 10 miles ENE of Craig.
15  21 04 54.3* 33.295 N  109.104 W    0 G           0.4    6  EASTERN ARIZONA. ML 2.8 (GS). 35 miles SW of Reserve, New
                                                                Mexico.
15  22 00 35.3* 33.109 N  109.477 W    0 G           0.9    7  EASTERN ARIZONA. ML 2.4 (GS). 25 miles NE of Safford.
16  19 01 46.6  43.616 N  105.148 W    0 G           0.8    6  WYOMING. ML 3.0 (GS). 50 miles WSW of Newcastle.
16  19 50 42.7? 32.55  N  109.34  W    0 G           1.6    6  EASTERN ARIZONA. ML 2.6 (GS). 30 miles SE of Safford.
16  21 21 23.2* 33.221 N  108.891 W    0 G           0.9   10  NEW MEXICO. ML 2.7 (GS). 35 miles SSW of Reserve.
16  22 03 35.7* 43.547 N  104.909 W    0 G           1.0    6  WYOMING. ML 2.7 (GS). 40 miles WSW of Newcastle.
16  23 04 34.9* 41.937 N  108.688 W    0 G           0.4    5  WYOMING. ML 2.8 (GS). 35 miles NE of Rock Springs.
17  03 14 20.8  40.293 N  106.866 W    0 G           0.8   10  COLORADO. ML 2.1 (GS). 15 miles S of Steamboat Springs.
17  18 05 02.7  36.521 N  110.591 W    0 G           1.1    9  EASTERN ARIZONA. ML 2.0 (GS). 25 miles SW of Kayenta.
17  21 01 01.9* 33.157 N  109.423 W    0 G           0.6    6  EASTERN ARIZONA. ML 2.8 (GS). 30 miles NE of Safford.
17  22 27 33.6  36.363 N  110.273 W    0 G           0.7   10  EASTERN ARIZONA. ML 2.5 (GS). 25 miles S of Kayenta.
18  08 14 43.4* 32.654 N  108.153 W    0 G           1.0    8  NEW MEXICO. ML 2.2 (GS). 10 miles SE of Silver City.
19  18 10 58.5  43.962 N  105.371 W    0 G           0.9    8  WYOMING. ML 2.7 (GS). 25 miles SSE of Gillette.
20  19 03 26.5? 32.63  N  109.17  W    0 G           0.6    7  EASTERN ARIZONA. ML 2.9 (GS). 35 miles NW of Lordsburg, New
                                                                Mexico.
20  22 00 35.9* 33.240 N  109.068 W    0 G           0.8   10  EASTERN ARIZONA. ML 3.0 (GS). 35 miles SSW of Reserve, New
                                                                Mexico.
21  19 57 42.3* 32.520 N  109.049 W    0 G           1.1    8  EASTERN ARIZONA. ML 2.8 (GS). 25 miles WNW of Lordsburg, New
                                                                Mexico.
21  20 34 41.9  40.525 N  112.163 W    0 G           0.6   11  UTAH. ML 2.2 (GS). 5 miles E of Tooele.
21  21 18 04.7* 43.945 N  105.205 W    0 G           1.3    5  WYOMING. ML 2.9 (GS). 25 miles SSE of Gillette.
21  22 00 57.9  40.658 N  109.525 W    0 G           0.8    9  UTAH. ML 1.9 (GS). 15 miles N of Vernal.
22  11 53 03.5  38.856 N  107.524 W    0 G           0.9    9  COLORADO. ML 2.3 (GS). 30 miles NE of Montrose.
22  18 10 20.3  44.128 N  105.417 W    0 G           0.7   13  WYOMING. ML 3.1 (GS). 15 miles SSE of Gillette.
22  22 26 06.1  32.873 N  109.219 W    0 G           1.0   13  EASTERN ARIZONA. ML 3.0 (GS). 30 miles E of Safford.
23  17 58 25.3  35.601 N  108.942 W    0 G           0.5    8  NEW MEXICO. ML 1.9 (GS). 15 miles WNW of Gallup.
23  18 35 01.3  36.443 N  110.378 W    0 G           0.8   13  EASTERN ARIZONA. ML 2.5 (GS). 20 miles SSW of Kayenta.
23  19 20 34.1* 32.513 N  108.935 W    0 G           0.6   10  NEW MEXICO. ML 2.5 (GS). 15 miles NW of Lordsburg.
23  20 25 11.5  40.545 N  107.441 W    0 G           0.8   17  COLORADO. ML 2.9 (GS). near Craig.
23  21 15 48.6  32.659 N  109.066 W    0 G           0.7   12  EASTERN ARIZONA. ML 3.2 (GS). 30 miles NW of Lordsburg, New
                                                                Mexico.
23  23 48 16.0* 40.586 N  108.017 W    0 G           1.0    7  COLORADO. ML 1.9 (GS). 25 miles WNW of Craig.
24  17 46 41.1  43.791 N  105.209 W    0 G           0.9    7  WYOMING. ML 2.2 (GS). 40 miles SSE of Gillette.
26  16 40 11.1  38.771 N  107.343 W    0 G           0.9   10  COLORADO. ML 2.5 (GS). 25 miles NW of Gunnison.
26  18 02 42.5  40.535 N  112.183 W    0 G           0.7   19  UTAH. ML 2.1 (GS). near Tooele.
27  20 58 33.3  32.601 N  109.047 W    0 G           0.6   11  EASTERN ARIZONA. ML 3.1 (GS). 25 miles NW of Lordsburg, New
                                                                Mexico.
27  21 12 47.4  43.564 N  105.262 W    0 G           0.8   11  WYOMING. ML 2.9 (GS). 50 miles SSE of Gillette.
28  16 26 04.3  41.754 N  108.749 W    0 G           1.3   14  WYOMING. ML 2.2 (GS). 25 miles ENE of Rock Springs.
28  21 39 31.7  44.081 N  105.397 W    0 G           0.9   10  WYOMING. ML 2.7 (GS). 15 miles SSE of Gillette.
28  23 03 57.1* 32.887 N  109.195 W    0 G           1.3   11  EASTERN ARIZONA. ML 2.9 (GS). 30 miles E of Safford.
29  20 01 46.8  43.707 N  105.226 W    0 G           0.8   16  WYOMING. ML 3.4 (GS). 45 miles SSE of Gillette.
29  20 57 15.4* 32.277 N  108.562 W    0 G           1.3    7  NEW MEXICO. ML 3.0 (GS). 10 miles ESE of Lordsburg.
30  03 59 39.3  39.786 N  107.273 W    0 G           0.8   10  COLORADO. ML 2.9 (GS). 15 miles N of Glenwood Springs.
30  17 18 00.7* 44.063 N  105.404 W    0 G           0.8    5  WYOMING. ML 2.6 (GS). 15 miles SSE of Gillette.
30  18 14 32.7  35.502 N  107.443 W    0 G           0.8   11  NEW MEXICO. ML 2.1 (GS). 30 miles NE of Grants.
30  20 07 23.9  43.699 N  105.210 W    0 G           1.0   18  WYOMING. ML 3.2 (GS). 30 miles SSE of Gillette.
30  21 03 20.2  36.592 N  108.566 W    0 G           0.6    9  NEW MEXICO. ML 2.2 (GS). 20 miles WSW of Farmington.
30  22 06 53.7* 33.106 N  109.304 W    0 G           2.2    9  EASTERN ARIZONA. ML 2.7 (GS). 30 miles NE of Safford.
31  19 08 59.1  33.074 N  109.368 W    0 G           1.0    9  EASTERN ARIZONA. ML 2.6 (GS). 25 miles NE of Safford.
31  22 48 32.6* 38.775 N  107.382 W    0 G           1.2    8  COLORADO. ML 2.4 (GS). 30 miles WNW of Gunnison.

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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