Bulletin: September 2003
U.S. DEPARTMENT OF THE INTERIOR NO. 9-03-EXP GEOLOGICAL SURVEY NOV 12, 2003 ROUTINE MINING SEISMICITY IN THE UNITED STATES SEPTEMBER 2003 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 09 21 12 54.7 43.876 N 105.299 W 0 G 1.1 106 12 WYOMING. ML 3.2 (GS). 50 km (30 miles) SSE of Gillette. 18 21 12 06.5 44.003 N 105.369 W 0 G 1.0 115 9 WYOMING. ML 3.4 (GS). 35 km (20 miles) SSE of Gillette. 19 18 14 24.8 36.914 N 104.757 W 0 G 0.9 103 10 NEW MEXICO. 30 km (20 miles) W of Raton. 20 18 38 17.3* 44.115 N 105.322 W 0 G 1.7 85 16 WYOMING. mbLg 3.0 (GS). 25 km (15 miles) SE of Gillette. 22 18 11 53.8 43.826 N 105.309 W 0 G 0.9 111 12 WYOMING. ML 3.2 (GS). 55 km (35 miles) SSE of Gillette. 23 12 39 49.6 38.937 N 107.490 W 1 G 1.6 80 11 COLORADO. ML 2.7 (GS). 10 km (5 miles) NE of Paonia. 28 21 25 40.3 36.417 N 110.323 W 0 G 0.8 100 11 ARIZONA. ML 2.5 (GS). ML 2.5 (GS). 35 km (20 miles) S of Kayenta. 29 20 10 14.6 43.841 N 105.293 W 0 G 0.8 50 28 WYOMING. ML 3.2 (GS). 55 km (35 miles) SSE of Gillette. 30 18 03 37.8 43.792 N 105.264 W 0 G 1.2 112 13 WYOMING. ML 3.2 (GS). 60 km (35 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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