Bulletin: April 2001
U.S. DEPARTMENT OF THE INTERIOR NO. 4-01-EXP
GEOLOGICAL SURVEY MAY 17, 2001
ROUTINE MINING SEISMICITY IN THE UNITED STATES
APRIL 2001
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 Msz USED
01 14 13 24.2 40.334 N 107.802 W 0 G 0.7 134 14 COLORADO. ML 2.4 (GS). 20 miles SW of Craig.
01 17 01 07.4? 33.11 N 109.37 W 0 G 0.2 175 4 EASTERN ARIZONA. ML 2.4 (GS). 25 miles NE of Safford.
01 20 09 45.2* 43.771 N 105.335 W 0 G 0.6 238 15 WYOMING. ML 3.1 (GS). 35 miles SSE of Gillette.
01 21 01 51.8 46.734 N 122.743 W 0 G 0.6 102 6 WASHINGTON. MD 3.6 (GS). 10 miles E of Centralia.
01 23 42 28.2? 43.71 N 104.82 W 0 G 1.1 253 9 WYOMING. ML 3.0 (GS). 30 miles WSW of Newcastle.
02 17 22 03.0? 43.89 N 104.82 W 0 G 0.6 256 6 WYOMING. ML 2.5 (GS). 30 miles W of Newcastle.
02 18 24 02.6* 33.018 N 109.328 W 0 G 0.2 177 5 EASTERN ARIZONA. ML 2.8 (GS). 25 miles ENE of Safford.
02 22 03 54.0 40.313 N 107.846 W 0 G 0.9 133 14 COLORADO. ML 2.8 (GS). 20 miles SW of Craig.
02 22 04 23.6 46.735 N 122.732 W 0 G 0.5 145 9 WASHINGTON. MD 3.0 (GS). 10 miles E of Centralia.
03 22 02 56.6 40.183 N 107.777 W 0 G 0.9 128 10 COLORADO. ML 2.5 (GS). 25 miles SSW of Craig.
04 19 50 35.1 33.045 N 109.336 W 0 G 0.8 139 7 EASTERN ARIZONA. ML 3.0 (GS). 25 miles NE of Safford.
04 22 02 18.0 40.315 N 107.830 W 0 G 0.6 132 18 COLORADO. ML 3.1 (GS). 20 miles SW of Craig.
05 18 09 58.8* 43.783 N 105.242 W 0 G 0.7 239 15 WYOMING. ML 3.1 (GS). 35 miles SSE of Gillette.
05 20 03 12.0* 43.847 N 104.727 W 0 G 0.7 255 11 WYOMING. ML 3.3 (GS). 25 miles W of Newcastle.
05 22 11 29.6* 46.807 N 122.741 W 0 G 0.4 130 5 WASHINGTON. MD 3.2 (GS). 10 miles ENE of Centralia.
06 15 37 41.1 41.639 N 108.853 W 0 G 0.8 146 18 WYOMING. ML 2.4 (GS). 20 miles ENE of Rock Springs.
06 20 00 12.5 43.767 N 105.091 W 0 G 0.8 144 18 WYOMING. ML 3.4 (GS). 40 miles SSE of Gillette.
06 21 26 04.4? 33.04 N 109.33 W 0 G 0.3 176 4 EASTERN ARIZONA. ML 2.5 (GS). 25 miles ENE of Safford.
06 22 02 47.0 40.308 N 107.742 W 0 G 0.4 134 14 COLORADO. ML 2.8 (GS). 20 miles SE of Craig.
08 17 03 57.6* 43.733 N 105.255 W 0 G 0.6 241 11 WYOMING. ML 2.9 (GS). 40 miles SSE of Gillette.
08 17 59 05.9 40.318 N 107.789 W 0 G 0.7 134 13 COLORADO. ML 2.5 (GS). 20 miles SW of Craig.
08 19 07 03.3 43.827 N 105.147 W 0 G 0.7 143 9 WYOMING. ML 3.0 (GS). 35 miles SSE of Gillette.
09 20 04 02.0 43.799 N 105.118 W 0 G 0.9 144 19 WYOMING. ML 3.4 (GS). 40 miles SSE of Gillette.
10 18 05 20.7* 32.994 N 109.331 W 0 G 0.6 264 4 EASTERN ARIZONA. ML 2.6 (GS). 25 miles ENE of Safford.
11 21 33 01.0 46.765 N 122.776 W 0 G 0.6 89 9 WASHINGTON. MD 2.8 (GS). 10 miles ENE of Centralia.
11 23 11 56.6 33.008 N 109.330 W 0 G 0.2 178 6 EASTERN ARIZONA. ML 2.7 (GS). 25 miles ENE of Safford.
13 17 09 50.7 41.745 N 108.791 W 0 G 0.8 156 11 WYOMING. ML 2.4 (GS). 25 miles ENE of Rock Springs.
13 19 16 29.2* 33.018 N 109.319 W 0 G 0.3 178 6 EASTERN ARIZONA. ML 3.1 (GS). 25 miles ENE of Safford.
13 19 57 36.6 33.040 N 109.316 W 0 G 0.2 176 6 EASTERN ARIZONA. ML 2.7 (GS). 25 miles ENE of Safford.
16 22 06 19.5* 33.044 N 109.359 W 0 G 0.5 175 5 EASTERN ARIZONA. ML 2.6 (GS). 25 miles NE of Safford.
17 18 01 56.1 43.629 N 105.249 W 0 G 0.8 123 17 WYOMING. ML 3.1 (GS). 45 miles SSE of Gillette.
17 18 44 11.5 41.729 N 108.675 W 0 G 0.7 85 14 WYOMING. ML 2.6 (GS). 30 miles ENE of Rock Springs.
17 20 03 00.8* 43.671 N 105.318 W 0 G 0.8 237 10 WYOMING. ML 3.3 (GS). 45 miles SSE of Gillette.
17 20 56 25.8 33.233 N 109.487 W 0 G 0.3 162 7 EASTERN ARIZONA. ML 2.9 (GS). 30 miles NNE of Safford.
18 18 01 10.2 43.731 N 105.308 W 0 G 0.7 121 13 WYOMING. ML 3.5 (GS). 40 miles SSE of Gillette.
18 21 03 32.9? 33.06 N 109.38 W 0 G 0.2 174 4 EASTERN ARIZONA. ML 2.6 (GS). 25 miles NE of Safford.
19 19 18 59.1 43.975 N 105.302 W 0 G 0.9 146 10 WYOMING. ML 3.1 (GS). 25 miles SSE of Gillette.
19 19 46 38.5* 33.085 N 109.367 W 0 G 1.0 173 5 EASTERN ARIZONA. ML 2.6 (GS). 25 miles NE of Safford.
19 20 42 44.2* 32.981 N 109.265 W 0 G 0.2 181 5 EASTERN ARIZONA. ML 2.7 (GS). 30 miles ENE of Safford.
19 22 05 54.4 40.256 N 107.769 W 0 G 0.8 168 8 COLORADO. ML 2.6 (GS). 20 miles SSW of Craig.
19 22 06 35.0 44.153 N 105.346 W 0 G 0.8 159 7 WYOMING. ML 3.0 (GS). 10 miles SE Gillette.
20 19 02 24.8* 43.853 N 105.066 W 0 G 0.8 242 13 WYOMING. ML 3.4 (GS). 35 miles SE of Gillette.
20 20 58 02.4 41.661 N 108.656 W 0 G 0.6 79 24 WYOMING. ML 3.1 (GS). 30 miles E of Rock Springs.
22 19 00 20.6 43.755 N 105.300 W 0 G 0.4 122 13 WYOMING. ML 3.1 (GS). 40 miles SSE of Gillette.
23 19 02 23.5 43.669 N 105.333 W 0 G 0.8 119 16 WYOMING. ML 3.1 (GS). 45 miles SSE of Gillette.
23 19 51 20.0* 33.068 N 109.343 W 0 G 0.6 174 6 EASTERN ARIZONA. ML 2.9 (GS). 25 miles NE of Safford.
23 22 05 31.7* 33.066 N 109.354 W 0 G 0.2 174 5 EASTERN ARIZONA. ML 2.5 (GS). 25 miles NE of Safford.
24 22 02 50.4 40.280 N 107.775 W 0 G 0.6 72 20 COLORADO. ML 3.2 (GS). 20 miles SSW of Craig.
25 16 39 02.6 45.144 N 106.822 W 0 G 0.8 180 14 MONTANA. ML 2.9 (GS). 25 miles NNE of Sheridan, Wyoming.
25 20 04 08.3 43.702 N 105.301 W 0 G 0.8 119 16 WYOMING. ML 3.2 (GS). 40 miles SSE of Gillette.
25 22 13 02.7* 33.110 N 109.374 W 0 G 1.0 171 7 EASTERN ARIZONA. ML 3.4 (GS). 25 miles NE of Safford.
25 23 35 54.7 33.040 N 109.310 W 0 G 0.2 177 6 EASTERN ARIZONA. ML 2.5 (GS). 25 miles ENE of Safford.
26 22 43 41.7 38.975 N 111.337 W 0 G 0.6 102 15 UTAH. ML 2.5 (GS). 40 miles ENE of Richfield.
30 18 50 22.7* 33.015 N 109.340 W 0 G 0.2 177 5 EASTERN ARIZONA. ML 3.1 (GS). 25 miles ENE of Safford.
30 22 34 18.4* 33.027 N 109.292 W 0 G 0.5 178 6 EASTERN ARIZONA. ML 2.7 (GS). 25 miles ENE of Safford.
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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