Bulletin: February 1999

 
U.S. DEPARTMENT OF THE INTERIOR                                                                         NO.  2-99-EXP
GEOLOGICAL SURVEY                                                                                        NOV  8, 1999
 
                                     PROBABLE MINING EXPLOSIONS IN THE UNITED STATES
 
                                                       FEBRUARY 1999
 
 
  ORIGIN TIME       GEOGRAPHIC       DEPTH MAGNITUDE  SD  NO.      REGION,  CONTRIBUTED  MAGNITUDES  AND  COMMENTS
      UTC          COORDINATES                GS          STA
DAY HR MN SEC     LAT       LONG            MB  Msz       USED
 
01  19 16 15.8  41.742 N  108.665 W    0 G           1.0   16  WYOMING. ML 2.4 (GS). 30 miles (50 km) ENE of Rock Springs,
                                                                Wyoming.
01  20 27 54.4  40.571 N  112.188 W    0 G           0.9   21  UTAH. ML 2.6 (GS). Near Tooele, Utah.
02  22 45 26.1  40.625 N  109.589 W    0 G           0.7   13  UTAH. ML 2.5 (GS). 10 miles (20 km) NNW of Vernal, Utah.
08  23 09 01.2  40.407 N  107.818 W    0 G           1.0   11  COLORADO. ML 3.2 (GS). 15 miles (30 km) WSW of Craig,
                                                                Colorado.
10  20 14 32.5* 33.022 N  109.475 W    0 G           0.9    6  EASTERN ARIZONA. ML 2.6 (GS). 20 miles (30 km) NE of
                                                                Safford, Arizona.
12  22 52 55.5  41.589 N  108.854 W    0 G           1.1   17  WYOMING. ML 2.5 (GS). 20 miles (30 km) E of Rock Springs,
                                                                Wyoming.
12  23 28 56.7* 32.701 N  109.371 W    0 G           1.4    9  EASTERN ARIZONA. ML 2.7 (GS). 20 miles (30 km) ESE of
                                                                Safford, Arizona.
13  18 33 52.9  41.800 N  108.661 W    0 G           0.8   23  WYOMING. ML 3.1 (GS). 30 miles (50 km) ENE of Rock Springs,
                                                                Wyoming.
14  21 17 38.2  41.824 N  108.759 W    0 G           0.7   14  WYOMING. ML 2.6 (GS). 30 miles (50 km) NE of Rock Springs,
                                                                Wyoming.
15  22 03 23.4  37.997 N   81.202 W    0 G           0.9    9  WEST VIRGINIA. mbLg 3.1 (GS). 15 miles (20 km) N of Beckley,
                                                                West Virginia.
15  22 36 07.0  41.785 N  108.724 W    0 G           1.2   19  WYOMING. ML 2.8 (GS). 30 miles (40 km) ENE of Rock Springs,
                                                                Wyoming.
17  23 08 16.8  40.307 N  107.792 W    0 G           1.2   10  COLORADO. ML 2.7 (GS). 20 miles (30 km) SW of Craig,
                                                                Colorado.
18  18 47 34.4* 32.518 N  109.126 W    0 G           1.5   10  EASTERN ARIZONA. ML 2.8 (GS). 25 miles (40 km) WNW of
                                                                Lordsburg, New Mexico.
18  21 46 44.1* 32.928 N  109.550 W    0 G           0.8    9  EASTERN ARIZONA. ML 2.6 (GS). 10 miles (20 km) NE of
                                                                Safford, Arizona.
19  23 03 05.3* 40.363 N  107.718 W    0 G           1.4    8  COLORADO. ML 2.5 (GS). 15 miles (20 km) SW of Craig,
                                                                Colorado.
20  20 37 27.9  40.551 N  112.188 W    0 G           1.1   21  UTAH. ML 2.5 (GS). NEAR Tooele, Utah.
21  16 29 31.1  40.524 N  112.143 W    0 G           0.6   18  UTAH. ML 2.2 (GS). 10 miles (10 km) E of Tooele, Utah.
22  20 09 55.7  43.649 N  105.141 W    0 G           1.1   14  WYOMING. ML 3.4 (GS). 50 miles (80 km) SSE of Gillette,
                                                                Wyoming.
23  17 04 30.1  40.616 N  109.557 W    0 G           1.4   12  UTAH. ML 2.4 (GS). 10 miles (20 km) N of Vernal, Utah.
23  17 27 06.4  40.554 N  112.206 W    0 G           0.9   20  UTAH. ML 2.5 (GS). NEAR Tooele, Utah.
23  20 00 59.0* 44.053 N  105.101 W    0 G           1.4    8  WYOMING. ML 3.2 (GS). 25 miles (40 km) SE of Gillette,
                                                                Wyoming.
24  17 14 35.5  37.225 N   82.008 W    0 G           1.4    8  WEST VIRGINIA. mbLg 3.3 (GS). 35 miles (50 km) ESE of
                                                                Pikeville, Kentucky.
24  21 20 37.6  40.153 N  107.015 W    0 G           1.5    9  COLORADO. ML 2.4 (GS). 25 miles (40 km) SSW of Steamboat
                                                                Springs, Colorado.
25  17 08 30.4* 37.027 N   82.630 W    0 G           0.8    5  WEST VIRGINIA. mbLg 3.0 (GS). 10 miles (20 km) NNE of Big
                                                                Stone Gap, Virginia.
25  20 07 10.1  43.666 N  105.241 W    0 G           1.4   16  WYOMING. ML 3.4 (GS). 45 miles (70 km) SSE of Gillette,
                                                                Wyoming.
25  21 29 29.1  40.578 N  109.559 W    0 G           1.0    9  UTAH. ML 2.5 (GS). 10 miles (10 km) N of Vernal, Utah.
26  20 08 13.8* 43.436 N  105.664 W    0 G           0.7   12  WYOMING. ML 3.4 (GS). 30 miles (50 km) E of Midwest, Wyoming.
26  21 36 59.8* 36.517 N  110.490 W    0 G           1.5    7  EASTERN ARIZONA. ML 2.5 (GS). 20 miles (30 km) SW of
                                                                Kayenta, Arizona.
28  23 06 10.5  40.269 N  107.838 W    0 G           1.2   16  COLORADO. ML 2.4 (GS). 25 miles (40 km) SW of Craig,
                                                                Colorado.

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.

Routine U.S. Mining Seismicity Home Page | Goal and Scope of the Bulletin | Evidence used in Identifying Routine Mining Seismicity | Explanation of Catalog Listings | Mining Seismicity Source Regions