M1.5 - 5km S of Heber Springs, Arkansas (BETA) 2014-07-31 12:43:49 UTC


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Location and Magnitude contributed by: New Madrid Seismic Network


Preferred Location Parameters

Parameter Value Uncertainty
Magnitude 1.5 md ± 0.20
Location 35.442°N, 92.028°W ± 4.8 km
Depth 6.9 km ± 16.5 km
Number of Stations Used 7
Number of Phases Used 10
Minimum Distance 29.0 km (0.26°)
Travel Time Residual 0.28 sec
Azimuthal Gap 166°
Review Status MANUAL
Event ID nm073114e
See the “Contributed Solutions” for a list of all contributed location parameters.

Contributed Solutions