Bulletin: May 2004
U.S. DEPARTMENT OF THE INTERIOR NO. 5-04-EXP
GEOLOGICAL SURVEY JUN 24, 2004
ROUTINE MINING SEISMICITY IN THE UNITED STATES
MAY 2004
ORIGIN TIME GEOGRAPHIC DEPTH MAGNITUDE Q SD GAP NO. F-E REGION, CONTRIBUTED MAGNITUDES AND COMMENTS
UTC COORDINATES GS STA
DAY HR MN SEC LAT LONG mb MS USED
12 21 05 53.2* 44.250 N 105.385 W 0 G B 1.2 167 11 WYOMING. ML 3.2 (GS). 10 km (5 miles) ESE of Gillette.
12 23 19 21.9 43.697 N 105.254 W 0 G A 0.7 171 10 WYOMING. ML 3.2 (GS). 70 km (45 miles) SSE of Gillette.
14 18 49 06.8 41.660 N 110.759 W 0 G A 0.9 70 23 WYOMING. ML 2.3 (GS). 45 km (30 miles) NNE of Evanston.
15 19 26 41.8 44.045 N 105.200 W 0 G 4.4 A 1.0 22 93 WYOMING. ML 4.1 (GS). 35 km (20 miles) SE of Gillette.
16 18 19 05.4* 43.620 N 105.420 W 0 G B 1.1 185 8 WYOMING. ML 3.2 (GS). 75 km (45 miles) ENE of Midwest.
16 20 08 00.6* 43.781 N 105.245 W 0 G B 1.0 115 9 WYOMING. ML 2.9 (GS). 60 km (40 miles) SSE of Gillette.
18 18 04 28.9 43.679 N 105.227 W 0 G A 0.8 95 14 WYOMING. ML 3.3 (GS). 70 km (45 miles) SSE of Gillette.
ML 3.3 (GS).
19 20 01 26.7 43.812 N 105.244 W 0 G A 0.9 113 21 WYOMING. ML 3.5 (GS). 55 km (35 miles) SSE of Gillette.
ML 3.5 (GS).
20 18 04 50.6 44.008 N 105.528 W 0 G A 1.1 142 12 WYOMING. ML 3.3 (GS). 30 km (20 miles) S of Gillette.
ML 3.3 (GS).
21 00 02 03.7 43.783 N 105.278 W 0 G A 0.7 114 15 WYOMING. ML 3.2 (GS). 60 km (40 miles) SSE of Gillette.
21 20 03 25.3 43.579 N 105.192 W 0 G A 1.2 128 16 WYOMING. ML 3.1 (GS). 85 km (50 miles) SSE of Gillette.
23 18 06 57.1 43.753 N 105.270 W 0 G A 0.8 116 20 WYOMING. ML 3.2 (GS). 60 km (40 miles) SSE of Gillette.
25 20 37 06.6* 43.374 N 104.976 W 0 G B 0.9 145 8 WYOMING. ML 3.1 (GS). 75 km (45 miles) NNE of Douglas.
ML 3.1 (GS).
27 18 04 34.4 43.816 N 105.276 W 0 G A 0.8 110 25 WYOMING. ML 3.2 (GS). 55 km (35 miles) SSE of Gillette.
55 km (35 miles) SSE of Gillette, Wyoming.
27 19 13 31.4 41.765 N 110.733 W 0 G A 0.6 152 16 WYOMING. ML 2.3 (GS). 60 km (35 miles) NNE of Evanston.
27 20 42 22.1 44.129 N 105.302 W 0 G 3.7 A 0.9 91 32 WYOMING. ML 3.9 (GS). 25 km (15 miles) SE of Gillette.
25 km (15 miles) SE of Gillette, Wyoming.
29 18 00 18.0 43.721 N 105.079 W 5 G A 1.6 124 12 WYOMING. ML 3.2 (GS). 70 km (45 miles) SSE of Gillette.
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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