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.