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.