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Thursday, December 15, 2011

Small earthquake on Arkansas' New Madrid Fault

2.0 Md - ARKANSAS

Preliminary Earthquake Report Magnitude 2.0 Md
Date-Time 14 Dec 2011 18:30:27 UTC
14 Dec 2011 12:30:27 near epicenter
14 Dec 2011 12:30:27 standard time in your timezone

Location 35.398N 90.720W
Depth 0 km
Distances 3 km (2 miles) E (101 degrees) of Cherry Valley, AR
18 km (12 miles) S (179 degrees) of Harrisburg, AR
20 km (12 miles) NNE (18 degrees) of Wynne, AR
75 km (46 miles) WNW (295 degrees) of Memphis, TN
362 km (225 miles) S (187 degrees) of St. Louis, MO

Location Uncertainty Horizontal: 1.6 km; Vertical 0.3 km
Parameters Nph = 16; Dmin = 6.0 km; Rmss = 0.15 seconds; Gp = 165°
M-type = Md; Version = A

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