U.S. DEPARTMENT OF THE INTERIOR NO. 9-10-EXP GEOLOGICAL SURVEY NOV 12, 2010 ROUTINE MINING SEISMICITY IN THE UNITED STATES SEPTEMBER 2010 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 09 18 06 33.7 43.797 N 105.192 W 0 G A 1.1 51 35 WYOMING. ML 3.2 (GS). 60 km (35 miles) SSE of Gillette. 10 19 09 31.4 43.710 N 105.107 W 0 G A 1.6 96 36 WYOMING. ML 3.1 (GS). 70 km (45 miles) SSE of Gillette. 13 23 05 50.7 33.095 N 111.063 W 0 G A 0.7 132 10 ARIZONA. ML 2.8 (GS). 30 km (20 miles) ENE of Florence. 26 22 20 30.8 33.424 N 111.246 W 0 G A 1.2 99 16 ARIZONA. ML 2.9 (GS). 30 km (20 miles) E of Apache Junction. {Note added January 28, 2011: this event is now cataloged as an earthquake by the USGS. Its revised epicenter and magnitude are available through the "Earthquake Search" web-site at https://earthquake.usgs.gov/earthquakes/eqarchives/epic/}