Bulletin: April 2002
U.S. DEPARTMENT OF THE INTERIOR NO. 4-02-EXP
GEOLOGICAL SURVEY MAY 25, 2002
ROUTINE MINING SEISMICITY IN THE UNITED STATES
APRIL 2002
ORIGIN TIME GEOGRAPHIC DEPTH MAGNITUDE SD GAP NO. F-E REGION, CONTRIBUTED MAGNITUDES AND COMMENTS
UTC COORDINATES GS STA
DAY HR MN SEC LAT LONG mb MS USED
01 01 02 58.8 40.271 N 107.808 W 0 G 1.4 98 17 COLORADO. ML 2.7 (GS). 20 miles (35 km) SW of Craig.
01 21 43 38.6 35.607 N 108.865 W 0 G 1.1 88 9 NEW MEXICO. ML 2.2 (GS). 10 miles (15 km) NW of Gallup.
02 20 02 10.4 41.726 N 108.474 W 0 G 1.3 128 23 WYOMING. ML 3.2 (GS). 40 miles (65 km) ENE of Rock
Springs.
03 19 56 09.7 32.786 N 109.219 W 0 G 0.7 193 11 EASTERN ARIZONA. ML 2.8 (GS). 30 milse (45 km) E of
Safford.
04 23 07 19.5 40.308 N 107.775 W 0 G 0.5 135 10 COLORADO. ML 3.1 (GS). 20 miles (30 km) SW of Craig.
05 23 02 53.0 40.392 N 107.807 W 0 G 0.9 138 15 COLORADO. ML 2.6 (GS). 15 miles (25 km) WNW of Craig.
06 18 13 28.6* 43.580 N 104.855 W 0 G 1.6 149 12 WYOMING. ML 3.0 (GS). 40 miles (60 km) WSW of Newcastle.
08 21 21 44.6 46.726 N 122.793 W 0 G 1.1 117 16 WASHINGTON. ML 2.4 (GS). 10 miles (10 km) E of
Centralia.
09 16 18 23.4 41.780 N 108.683 W 0 G 0.6 86 23 WYOMING. ML 2.6 (GS). 30 miles (50 km) ENE of Rock
Springs.
09 22 04 46.8 40.322 N 107.764 W 0 G 0.7 71 19 COLORADO. ML 3.2 (GS). 15 miles (25 km) SW of Craig.
10 17 06 01.1 41.719 N 110.698 W 0 G 0.2 106 17 WYOMING. ML 1.9 (GS). 35 miles (55 km) NNE of Evanston.
10 18 31 32.3 44.208 N 105.265 W 0 G 1.0 140 20 WYOMING. ML 3.3 (GS). 15 miles (20 km) ESE of Gillette.
10 20 03 40.5 43.824 N 105.152 W 0 G 1.2 143 23 WYOMING. ML 3.2 (GS). 35 miles (60 km) SSE of Gillette.
10 21 34 58.5 46.732 N 122.843 W 0 G 0.4 134 6 WASHINGTON. 5 miles (10 km) ENE of Centralia.
11 21 47 49.5 32.934 N 109.230 W 0 G 0.9 119 7 EASTERN ARIZONA. ML 2.8 (GS). 30 miles (45 km) ENE of
Safford.
12 17 25 39.3 41.804 N 108.682 W 0 G 0.9 82 26 WYOMING. ML 2.6 (GS). 30 miles (50 km) ENE of Rock
Springs.
15 18 03 56.1 43.643 N 105.254 W 0 G 1.0 123 18 WYOMING. ML 3.2 (GS). 45 miles (75 km) SSE of Gillette.
16 18 00 07.7 43.671 N 105.250 W 0 G 0.7 126 20 WYOMING. ML 3.4 (GS). 45 miles (70 km) SSE of Gillette.
16 20 14 57.7 44.231 N 105.351 W 0 G 0.8 102 22 WYOMING. ML 3.2 (GS). 10 miles (15 km) ESE of Gillette.
16 22 48 35.5 32.989 N 109.316 W 0 G 0.6 142 11 EASTERN ARIZONA. ML 2.7 (GS). 25 miles (40 km) ENE of
Safford.
17 20 43 33.2 41.821 N 108.898 W 0 G 0.7 154 13 WYOMING. ML 2.3 (GS). 20 miles (35 km) NE of Rock
Springs.
17 22 23 00.5 46.703 N 122.777 W 0 G 0.6 113 10 WASHINGTON. ML 2.0 (GS). 10 miles (15 km) E of
Centralia.
18 17 27 50.7 41.716 N 108.649 W 0 G 1.0 152 24 WYOMING. ML 3.1 (GS). 30 miles (50 km) ENE of Rock
Springs.
18 20 37 08.2* 44.094 N 105.321 W 0 G 1.3 241 22 WYOMING. ML 3.3 (GS). 15 miles (25 km) SSE of Gillette.
18 20 45 31.5 46.715 N 122.788 W 0 G 1.2 115 10 WASHINGTON. ML 2.3 (GS). 10 miles (15 km) E of
Centralia.
19 20 21 14.1 33.064 N 109.374 W 0 G 0.8 137 13 EASTERN ARIZONA. ML 2.7 (GS). 25 miles (40 km) NE of
Safford.
20 22 18 29.3 41.830 N 108.718 W 0 G 1.1 82 25 WYOMING. ML 2.7 (GS). 30 miles (50 km) ENE of Rock
Springs.
22 21 46 14.2 46.733 N 122.820 W 0 G 0.8 132 7 WASHINGTON. 5 miles (10 km) ENE of Centralia.
23 18 09 12.6 43.760 N 105.080 W 0 G 1.0 108 27 WYOMING. ML 3.4 (GS). 40 miles (70 km) SSE of Gillette.
24 21 59 05.4* 32.514 N 108.998 W 0 G 1.1 212 5 NEW MEXICO. ML 2.7 (GS). 20 miles (35 km) NW of
Lordsburg.
26 22 11 32.0 40.316 N 107.907 W 0 G 0.8 157 14 COLORADO. ML 3.0 (GS). 25 miles (35 km) SW of Craig.
28 21 44 40.5 42.879 N 111.329 W 0 G 0.9 80 20 EASTERN IDAHO. ML 1.8 (GS). 25 miles (35 km) WNW of
Afton.
29 20 28 49.7 41.885 N 108.818 W 0 G 1.1 160 20 WYOMING. ML 2.4 (GS). 30 miles (45 km) NE of Rock
Springs.
30 18 08 01.7 40.366 N 107.788 W 0 G 0.9 152 13 COLORADO. ML 2.5 (GS). 15 miles (25 km) SW of Craig.
30 19 26 40.9 41.113 N 112.851 W 0 G 0.6 75 17 UTAH. ML 1.8 (GS). 45 miles (75 km) W of Ogden.
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