Bulletin: August 1998
U.S. DEPARTMENT OF THE INTERIOR NO. 8-98-EXP
GEOLOGICAL SURVEY OCT 20, 1998
PROBABLE MINING EXPLOSIONS IN THE UNITED STATES
AUGUST 1998
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
02 22 30 30.8 40.628 N 112.223 W 0 G 1.1 14 UTAH. ML 2.4 (GS). 10 miles (10 km) NNE of Tooele, Utah.
03 19 15 06.3 41.722 N 110.584 W 0 G 0.9 9 WYOMING. ML 1.9 (GS). 35 miles (60 km) NNE of Evanston,
Wyoming.
03 20 14 09.0 40.565 N 112.124 W 0 G 1.3 8 UTAH. ML 1.6 (GS). 10 miles (20 km) ENE of Tooele, Utah.
04 15 15 20.0 40.564 N 112.266 W 0 G 1.3 13 UTAH. ML 2.2 (GS). NEAR Tooele, Utah.
04 16 54 15.0* 40.525 N 112.249 W 0 G 0.8 5 UTAH. NEAR Tooele, Utah.
04 18 12 13.7? 40.28 N 107.26 W 0 G 0.9 7 COLORADO. ML 2.9 (GS). 20 miles (40 km) SE of Craig,
Colorado.
05 22 03 45.4 40.303 N 107.726 W 0 G 0.7 14 COLORADO. ML 2.6 (GS). 20 miles (30 km) SSW of Craig,
Colorado.
06 16 51 18.1 42.699 N 111.616 W 0 G 0.5 8 EASTERN IDAHO. ML 1.2 (GS). 30 miles (50 km) NNW of
Montpelier, Idaho.
06 19 20 29.2 41.723 N 110.641 W 0 G 1.1 14 WYOMING. ML 2.2 (GS). 35 miles (60 km) NNE of Evanston,
Wyoming.
06 20 03 00.7 40.533 N 112.176 W 0 G 0.9 11 UTAH. ML 2.0 (GS). 5 miles (10 km) E of Tooele, Utah.
06 21 03 16.8* 46.701 N 122.936 W 0 G 1.5 7 WASHINGTON. ML 2.8 (GS). NEAR Centralia, Washington.
06 21 23 29.1 41.856 N 108.819 W 0 G 1.0 12 WYOMING. ML 2.3 (GS). 25 miles (40 km) NE of Rock Springs,
Wyoming.
07 17 31 40.5 40.539 N 112.182 W 0 G 0.5 12 UTAH. ML 2.3 (GS). NEAR Tooele, Utah.
07 20 33 41.3 40.570 N 112.195 W 0 G 0.9 10 UTAH. ML 2.2 (GS). NEAR Tooele, Utah.
07 22 11 52.5 37.880 N 81.545 W 0 G 1.0 6 WEST VIRGINIA. mbLg 2.9 (GS). 20 miles (30 km) WNW of
Beckley, West Virginia.
07 23 33 51.7 43.613 N 105.130 W 0 G 1.0 12 WYOMING. ML 3.4 (GS). 50 miles (80 km) SSE of Gillette,
Wyoming.
08 15 11 52.6 40.561 N 112.192 W 0 G 1.2 15 UTAH. ML 2.1 (GS). NEAR Tooele, Utah.
08 20 48 03.9 41.694 N 108.651 W 0 G 0.9 18 WYOMING. ML 3.0 (GS). 30 miles (50 km) ENE of Rock Springs,
Wyoming.
09 23 42 34.2* 43.977 N 105.321 W 0 G 0.4 5 WYOMING. ML 2.7 (GS). 20 miles (40 km) SSE of Gillette,
Wyoming.
12 22 09 56.4 40.251 N 107.847 W 0 G 1.0 11 COLORADO. ML 2.1 (GS). 25 miles (40 km) SW of Craig,
Colorado.
13 16 24 26.1* 43.566 N 105.097 W 0 G 1.4 9 WYOMING. ML 3.3 (GS). 50 miles (80 km) WSW of Newcastle,
Wyoming.
13 17 02 35.5 41.858 N 109.149 W 0 G 0.9 11 WYOMING. ML 3.0 (GS). 20 miles (30 km) N of Rock Springs,
Wyoming.
13 17 52 39.1 41.071 N 112.868 W 0 G 0.8 7 UTAH. ML 2.7 (GS). 50 miles (80 km) NW of Tooele, Utah.
Missile.
13 17 54 22.0 40.551 N 112.199 W 0 G 1.1 17 UTAH. ML 2.8 (GS). NEAR Tooele, Utah.
13 19 56 16.4 41.732 N 110.628 W 0 G 0.9 8 WYOMING. ML 1.7 (GS). 35 miles (60 km) NNE of Evanston,
Wyoming.
13 20 06 06.5 36.454 N 110.418 W 0 G 1.1 7 EASTERN ARIZONA. ML 2.4 (GS). 20 miles (30 km) SSW of
Kayenta, Arizona.
13 22 03 08.9* 40.270 N 107.756 W 0 G 1.2 9 COLORADO. ML 2.8 (GS). 20 miles (30 km) SSW of Craig,
Colorado.
13 22 09 16.8* 46.727 N 122.937 W 0 G 1.3 7 WASHINGTON. NEAR Centralia, Washington.
14 18 34 51.9* 43.158 N 105.635 W 0 G 1.2 8 WYOMING. ML 2.7 (GS). 30 miles (50 km) NNW of Douglas,
Wyoming.
17 18 55 53.5* 32.932 N 109.476 W 0 G 1.0 6 EASTERN ARIZONA. ML 2.6 (GS). 15 miles (20 km) ENE of
Safford, Arizona.
17 21 38 29.7 46.757 N 122.774 W 0 G 0.5 6 WASHINGTON. 10 miles (10 km) ENE of Centralia, Washington.
17 22 04 51.8 40.270 N 107.844 W 0 G 1.4 12 COLORADO. ML 2.5 (GS). 25 miles (40 km) SW of Craig,
Colorado.
17 22 18 18.2 46.774 N 122.786 W 0 G 0.9 6 WASHINGTON. 10 miles (10 km) ENE of Centralia, Washington.
18 22 16 30.7 46.781 N 122.787 W 0 G 0.3 6 WASHINGTON. 10 miles (20 km) ENE of Centralia, Washington.
18 23 35 39.2 40.306 N 107.802 W 0 G 0.8 14 COLORADO. ML 3.2 (GS). 20 miles (30 km) SW of Craig,
Colorado.
19 14 47 53.1 40.514 N 112.220 W 0 G 0.9 16 UTAH. ML 2.6 (GS). NEAR Tooele, Utah.
20 20 09 03.5 40.586 N 112.317 W 0 G 1.0 9 UTAH. ML 2.3 (GS). NEAR Tooele, Utah.
20 22 03 54.8 40.238 N 107.711 W 0 G 0.7 8 COLORADO. ML 2.4 (GS). 20 miles (30 km) SSW of Craig,
Colorado.
21 23 20 51.0 40.248 N 107.788 W 0 G 0.9 10 COLORADO. ML 2.8 (GS). 20 miles (40 km) SW of Craig,
Colorado.
23 20 27 25.4 40.495 N 112.156 W 0 G 1.1 9 UTAH. ML 2.2 (GS). 10 miles (10 km) ESE of Tooele, Utah.
24 15 29 47.9 41.867 N 108.792 W 0 G 0.9 19 WYOMING. ML 2.7 (GS). 30 miles (50 km) NE of Rock Springs,
Wyoming.
24 19 46 41.0 42.739 N 111.616 W 0 G 1.1 10 EASTERN IDAHO. ML 1.8 (GS). 35 miles (50 km) NNW of
Montpelier, Idaho.
24 21 41 53.7 46.775 N 122.786 W 0 G 1.0 7 WASHINGTON. ML 2.4 (GS). 10 miles (10 km) ENE of Centralia,
Washington.
24 22 05 33.0 40.353 N 107.748 W 0 G 1.3 14 COLORADO. ML 2.6 (GS). 15 miles (20 km) SW of Craig,
Colorado.
25 17 08 24.7 41.668 N 108.694 W 0 G 0.9 7 WYOMING. ML 2.4 (GS). 25 miles (40 km) ENE of Rock Springs,
Wyoming.
27 20 46 31.3 40.716 N 109.401 W 0 G 1.3 11 UTAH. ML 2.1 (GS). 20 miles (30 km) NNE of Vernal, Utah.
27 21 29 11.1? 32.19 N 108.69 W 0 G 1.1 6 NEW MEXICO. ML 2.9 (GS). 10 miles (20 km) S of Lordsburg,
New Mexico.
27 22 09 47.2* 46.748 N 122.914 W 0 G 0.4 5 WASHINGTON. NEAR Centralia, Washington.
28 20 49 14.9 40.641 N 109.419 W 0 G 1.4 9 UTAH. ML 2.2 (GS). 15 miles (20 km) NNE of Vernal, Utah.
29 00 58 33.4* 44.034 N 105.291 W 0 G 0.9 8 WYOMING. ML 3.0 (GS). 20 miles (30 km) ESE of Gillette,
Wyoming.
29 17 05 28.2 41.773 N 108.937 W 0 G 1.1 16 WYOMING. ML 2.7 (GS). 20 miles (30 km) NE of Rock Springs,
Wyoming.
29 23 04 14.0* 40.365 N 107.725 W 0 G 0.2 5 COLORADO. ML 2.3 (GS). 15 miles (20 km) SW of Craig,
Colorado.
30 16 58 57.9 40.591 N 112.382 W 0 G 1.4 15 UTAH. ML 2.3 (GS). NEAR Tooele, Utah.
30 20 27 26.8 40.581 N 112.296 W 0 G 1.2 18 UTAH. ML 2.7 (GS). NEAR Tooele, Utah.
31 17 04 07.3 40.538 N 112.154 W 0 G 1.0 14 UTAH. ML 2.4 (GS). 10 miles (10 km) E of Tooele, Utah.
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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