Bulletin: March 1999
U.S. DEPARTMENT OF THE INTERIOR NO. 3-99-EXP
GEOLOGICAL SURVEY NOV 10, 1999
PROBABLE MINING EXPLOSIONS IN THE UNITED STATES
MARCH 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
04 17 09 13.2 43.554 N 105.170 W 0 G 0.9 13 WYOMING. ML 3.2 (GS). 55 miles (80 km) WSW of Newcastle,
Wyoming.
06 00 21 35.9* 43.949 N 105.312 W 0 G 1.0 7 WYOMING. ML 2.7 (GS). 25 miles (40 km) SSE of Gillette,
Wyoming.
07 00 46 12.8 41.774 N 108.699 W 0 G 1.0 17 WYOMING. ML 2.7 (GS). 30 miles (50 km) ENE of Rock Springs,
Wyoming.
10 16 26 33.5 37.911 N 81.771 W 0 G 1.0 8 WEST VIRGINIA. mbLg 3.2 (GS). 30 miles (50 km) SSW of
Charleston, West Virginia.
10 20 41 13.2 36.391 N 110.326 W 0 G 0.8 10 EASTERN ARIZONA. ML 3.1 (GS). 25 miles (40 km) S of Kayenta,
Arizona.
10 23 04 08.1 40.098 N 107.863 W 0 G 1.2 16 COLORADO. ML 2.7 (GS). 35 miles (50 km) SSW of Craig,
Colorado.
11 23 05 23.6 40.325 N 107.792 W 0 G 0.8 16 COLORADO. ML 2.8 (GS). 20 miles (30 km) SW of Craig,
Colorado.
13 21 03 49.6 40.541 N 112.140 W 0 G 1.0 20 UTAH. ML 2.4 (GS). 10 miles (10 km) E of Tooele, Utah.
13 23 05 33.0 40.220 N 107.852 W 0 G 1.3 16 COLORADO. ML 2.6 (GS). 30 miles (40 km) SW of Craig,
Colorado.
16 17 19 16.2 41.667 N 109.144 W 0 G 1.5 13 WYOMING. ML 2.8 (GS). 5 miles (10 km) NE of Rock Springs,
Wyoming.
19 17 32 17.7? 47.66 N 92.25 W 0 G 1.8 4 MINNESOTA. 15 miles (30 km) NE of Virginia, Minnesota.
20 18 21 18.1 41.731 N 108.572 W 0 G 1.4 18 WYOMING. ML 2.4 (GS). 35 miles (50 km) ENE of Rock Springs,
Wyoming.
20 21 40 19.5 40.590 N 109.590 W 0 G 1.0 12 UTAH. ML 2.4 (GS). 10 miles (20 km) NNW of Vernal, Utah.
22 18 45 49.8* 32.948 N 109.346 W 0 G 0.8 5 EASTERN ARIZONA. ML 2.5 (GS). 20 miles (40 km) ENE of
Safford, Arizona.
22 21 41 38.0* 37.040 N 110.141 W 0 G 1.4 6 UTAH. ML 2.4 (GS). 20 miles (40 km) NNE of Kayenta, Arizona.
24 20 06 41.5 43.646 N 105.254 W 0 G 1.1 20 WYOMING. ML 3.3 (GS). 45 miles (80 km) SSE of Gillette,
Wyoming.
24 21 07 33.4 36.399 N 110.481 W 0 G 1.2 11 EASTERN ARIZONA. ML 2.7 (GS). 25 miles (40 km) SSW of
Kayenta, Arizona.
24 22 58 28.0* 40.225 N 107.939 W 0 G 1.5 9 COLORADO. ML 2.6 (GS). 30 miles (50 km) SW of Craig,
Colorado.
25 19 21 44.3 38.012 N 81.387 W 0 G 1.2 8 WEST VIRGINIA. mbLg 3.2 (GS). 20 miles (30 km) NW of
Beckley, West Virginia.
25 21 10 40.7 36.430 N 110.488 W 0 G 1.4 8 EASTERN ARIZONA. ML 2.6 (GS). 25 miles (40 km) SW of
Kayenta, Arizona.
26 19 41 26.5* 45.328 N 106.794 W 0 G 0.9 8 MONTANA. ML 3.0 (GS). 40 miles (60 km) NNE of Sheridan,
Wyoming.
27 00 33 46.7 40.199 N 107.819 W 0 G 1.2 12 COLORADO. ML 2.6 (GS). 25 miles (40 km) SSW of Craig,
Colorado.
28 16 12 29.9 40.535 N 112.156 W 0 G 0.9 20 UTAH. ML 2.5 (GS). 5 miiles (10 km) E of Tooele, Utah.
30 16 55 29.4 41.770 N 108.913 W 0 G 1.3 13 WYOMING. ML 2.8 (GS). 20 miles (30 km) NE or Rock Springs,
Wyoming.
30 17 25 54.3 36.422 N 110.208 W 0 G 0.7 7 EASTERN ARIZONA. ML 2.7 (GS). 20 miles (30 km) S of Kayenta,
Arizona.
31 17 24 51.3 41.785 N 108.788 W 0 G 0.8 13 WYOMING. ML 2.3 (GS). 25 miles (40 km) NE of Rock Springs,
Wyoming.
31 18 04 26.9* 43.941 N 105.241 W 0 G 1.2 7 WYOMING. ML 3.1 (GS). 25 miles (40 km) SSE of Gillette,
Wyoming.
31 20 25 36.8* 43.942 N 105.259 W 0 G 1.4 9 WYOMING. ML 3.0 (GS). 25 miles (40 km) SSE of Gillette,
Wyoming.
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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