M1.8 - 3km SW of Heber Springs, Arkansas (BETA) 2014-07-31 07:15:15 UTC


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Location and Magnitude contributed by: New Madrid Seismic Network


Preferred Location Parameters

Parameter Value Uncertainty
Magnitude 1.8 md ± 0.20
Location 35.469°N, 92.065°W ± 2.3 km
Depth 0.1 km ± 3.9 km
Number of Stations Used 11
Number of Phases Used 12
Minimum Distance 28.0 km (0.25°)
Travel Time Residual 0.39 sec
Azimuthal Gap 205°
Review Status MANUAL
Event ID nm073114a
See the “Contributed Solutions” for a list of all contributed location parameters.

Contributed Solutions