Three earthquakes in Arkansas this past weekend

3.3 MbLg - ARKANSAS
Preliminary Earthquake Report
Magnitude 3.3 MbLg
Date-Time
19 Aug 2012 08:24:23 UTC
19 Aug 2012 03:24:23 near epicenter
19 Aug 2012 02:24:23 standard time in your timezone
Location 35.231N 92.372W
Depth 6 km
Distances
2 km (1 miles) E (85 degrees) of Greenbrier, AR
8 km (5 miles) ENE (66 degrees) of Wooster, AR
11 km (7 miles) SSE (154 degrees) of Twin Groves, AR
55 km (34 miles) N (356 degrees) of Little Rock, AR
422 km (262 miles) SSW (207 degrees) of St. Louis, MO
Location Uncertainty Horizontal: 0.7 km; Vertical 1.6 km
Parameters Nph = 24; Dmin = 10.3 km; Rmss = 0.15 seconds; Gp = 57°
M-type = MbLg; Version = B
Event ID nm 081912a ***This event supersedes event USc000c2xh.

2.5 MbLg - ARKANSAS
Preliminary Earthquake Report
Magnitude 2.5 MbLg
Date-Time
19 Aug 2012 10:56:17 UTC
19 Aug 2012 05:56:17 near epicenter
19 Aug 2012 04:56:17 standard time in your timezone
Location 35.242N 92.374W
Depth 3 km
Distances
2 km (1 miles) NE (46 degrees) of Greenbrier, AR
9 km (5 miles) ENE (58 degrees) of Wooster, AR
10 km (6 miles) SSE (151 degrees) of Twin Groves, AR
56 km (35 miles) N (356 degrees) of Little Rock, AR
421 km (262 miles) SSW (207 degrees) of St. Louis, MO
Location Uncertainty Horizontal: 0.4 km; Vertical 0.6 km
Parameters Nph = 38; Dmin = 9.3 km; Rmss = 0.20 seconds; Gp = 39°
M-type = MbLg; Version = B
Event ID nm 081912b ***This event supersedes event USc000c2yx

3.0 mb_Lg - ARKANSAS
Preliminary Earthquake Report
Magnitude 3.0 mb_Lg
Date-Time
20 Aug 2012 04:29:04 UTC
19 Aug 2012 23:29:04 near epicenter
19 Aug 2012 22:29:04 standard time in your timezone
Location 35.235N 92.406W
Depth 4 km
Distances
2 km (1 miles) WNW (291 degrees) of Greenbrier, AR
6 km (4 miles) NE (49 degrees) of Wooster, AR
9 km (6 miles) S (170 degrees) of Twin Groves, AR
56 km (35 miles) N (353 degrees) of Little Rock, AR
423 km (263 miles) SSW (208 degrees) of St. Louis, MO
Location Uncertainty Horizontal: 4.2 km; Vertical 2.9 km
Parameters Nph = 10; Dmin = 12.6 km; Rmss = 0.16 seconds; Gp = 61°
M-type = mb_Lg; Version = 6
Event ID us c000c37n