Bulletin: October 1999

 
U.S. DEPARTMENT OF THE INTERIOR                                                                         NO. 10-99-EXP
GEOLOGICAL SURVEY                                                                                        NOV 17, 1999
 
                                     PROBABLE MINING EXPLOSIONS IN THE UNITED STATES
 
                                                        OCTOBER 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  17 51 25.3* 35.552 N  107.620 W    0 G           0.5    6  NEW MEXICO. ML 1.5 (GS). 30 miles NNE of Grants.
01  21 40 30.9* 32.648 N  108.408 W    0 G           0.5    6  NEW MEXICO. ML 2.1 (GS). 10 miles SW of Silver City.
01  22 08 43.1  46.743 N  122.780 W    0 G           0.3    6  WASHINGTON. MD 3.0 (GS). 10 miles ENE of Centralia.
01  23 58 10.5* 32.709 N  108.464 W    0 G           0.4    7  NEW MEXICO. ML 2.5 (GS). 10 miles WSW of Silver City.
02  21 11 04.0* 46.721 N  122.772 W    0 G           0.4    5  WASHINGTON. MD 3.2 (GS). 10 miles E of Centralia.
03  15 37 26.9* 41.756 N  108.912 W    0 G           0.7    6  WYOMING. ML 2.1 (GS). 20 miles E of Rock Springs.
03  18 12 11.1* 32.948 N  109.321 W    0 G           1.0    8  EASTERN ARIZONA. ML 2.6 (GS). 25 miles ENE of Safford.
04  16 10 14.5* 41.834 N  108.596 W    0 G           0.6    6  WYOMING. ML 2.4 (GS). 35 miles ENE of Rock Springs.
07  21 33 20.5* 33.149 N  109.441 W    0 G           0.5    7  EASTERN ARIZONA. ML 2.7 (GS). 25 miles NE of Safford.
10  20 02 04.7  40.590 N  112.297 W    0 G           1.4    9  UTAH. ML 2.3 (GS). near Tooele.
11  17 50 21.2? 33.22  N  109.49  W    0 G           1.1    6  EASTERN ARIZONA. ML 2.4 (GS). 30 miles NNE of Safford.
11  21 00 28.7* 32.813 N  109.187 W    0 G           0.1    5  EASTERN ARIZONA. ML 2.5 (GS). 30 miles E of Safford.
11  22 05 20.7* 40.268 N  107.720 W    0 G           1.1    6  COLORADO. ML 2.0 (GS). 20 miles SSW of Craig.
12  19 01 42.9* 32.799 N  109.194 W    0 G           1.9    5  EASTERN ARIZONA. ML 2.6 (GS). 30 miles E of Safford.
13  17 39 35.1? 32.72  N  109.15  W    0 G           1.1    7  EASTERN ARIZONA. ML 2.8 (GS). 35 miles ESE of Safford.
13  21 01 35.7  35.488 N  107.594 W    0 G           1.1    8  NEW MEXICO. ML 2.8 (GS). 25 miles NNE of Grants.
13  22 25 04.3* 46.687 N  122.751 W    0 G           0.7    5  WASHINGTON. MD 2.7 (GS). 10 miles ESE of Centralia.
15  15 54 21.7* 41.923 N  108.779 W    0 G           1.0    7  WYOMING. ML 1.9 (GS). 30 miles NE of Rock Springs.
15  20 56 27.3  35.615 N  109.049 W    0 G           1.0    7  EASTERN ARIZONA. ML 1.9 (GS). 20 miles WNW of Gallup.
18  19 42 32.7* 36.551 N  108.526 W    0 G           1.1    6  NEW MEXICO. ML 1.9 (GS). 20 miles SW of Farmington.
19  17 45 06.4  41.874 N  108.569 W    0 G           1.0   10  WYOMING. ML 2.7 (GS). 45 miles NE of Rock Springs.
19  22 18 46.8* 32.713 N  109.116 W    0 G           0.6    6  EASTERN ARIZONA. ML 2.9 (GS). 35 miles ESE of Safford.
20  22 51 42.7  33.068 N  109.328 W    0 G           0.4    8  EASTERN ARIZONA. ML 3.0 (GS). 25 miles NE of Safford.
21  19 16 34.8? 38.24  N   81.51  W    0 G           0.4    4  WEST VIRGINIA. mbLg 2.8 (GS). 10 miles SE of Charleston.
21  22 04 51.0  33.065 N  109.355 W    0 G           0.8   11  EASTERN ARIZONA. ML 2.9 (GS). 25 miles NE of Safford.
22  17 14 25.2* 40.678 N  107.602 W    0 G           0.7    7  COLORADO. ML 2.6 (GS). 10 miles NNW of Craig.
22  18 07 59.5  40.296 N  107.816 W    0 G           1.2   10  COLORADO. ML 3.1 (GS). 20 miles SW of Craig.
22  22 33 13.0  40.316 N  107.908 W    0 G           1.1   11  COLORADO. ML 3.1 (GS). 25 miles SW of Craig.
23  15 58 51.8  40.567 N  112.199 W    0 G           0.6    8  UTAH. ML 2.2 (GS). near Tooele.
23  17 58 31.4* 35.439 N  108.937 W    0 G           1.0    7  NEW MEXICO. ML 2.1 (GS). 15 miles WSW of Gallup.
24  14 56 34.5* 40.901 N  106.894 W    0 G           1.6    9  COLORADO. ML 2.6 (GS). 30 miles N of Steamboat Springs.
24  16 23 33.0  40.535 N  112.151 W    0 G           0.7   12  UTAH. ML 2.3 (GS). 10 miles E of Tooele.
25  00 04 41.4  41.768 N  109.021 W    0 G           0.6    9  WYOMING. ML 2.4 (GS). 15 miles NE of Rock Springs.
25  16 32 39.8? 42.05  N  109.59  W    0 G           1.7    5  WYOMING. ML 2.0 (GS). 40 miles NNW of Rock Springs.
25  19 43 53.9  41.451 N  108.982 W    0 G           0.9    9  WYOMING. ML 2.2 (GS). 15 miles SE of Rock Springs.
25  21 19 15.9* 32.848 N  109.473 W    0 G           1.1    7  EASTERN ARIZONA. ML 2.4 (GS). 15 miles E of Safford.
25  21 54 07.8* 32.768 N  109.143 W    0 G           0.6    6  EASTERN ARIZONA. ML 2.3 (GS). 35 miles E of Safford.
26  20 04 44.7  40.489 N  112.074 W    0 G           0.8   11  UTAH. ML 2.1 (GS). 10 miles E of Tooele.
27  21 50 04.1  33.023 N  109.351 W    0 G           0.6    9  EASTERN ARIZONA. ML 3.2 (GS). 25 miles NE of Safford.
29  00 18 02.6* 32.804 N  109.341 W    0 G           0.2    6  EASTERN ARIZONA. ML 2.8 (GS). 30 miles E of Safford.
29  21 57 50.7  35.501 N  107.593 W    0 G           0.7    9  NEW MEXICO. ML 2.0 (GS). 30 miles NNE of Grants.
30  16 18 12.1  40.525 N  112.198 W    0 G           0.9   14  UTAH. ML 2.3 (GS). 10 miles E of Tooele.
30  16 35 02.0* 36.530 N  108.469 W    0 G           1.0    6  NEW MEXICO. ML 1.9 (GS). 20 miles SW of Farmington.

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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