M2.2 - 3km SW of Heber Springs, Arkansas (BETA) 2014-04-18 10:19:53 UTC


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Location and Magnitude contributed by: New Madrid Seismic Network


Preferred Location Parameters

Parameter Value Uncertainty
Magnitude 2.2 md ± 0.20
Location 35.469°N, 92.059°W ± 1.3 km
Depth 0.1 km ± 3.3 km
Number of Stations Used 12
Number of Phases Used 18
Minimum Distance 29.0 km (0.26°)
Travel Time Residual 0.26 sec
Azimuthal Gap 148°
Review Status MANUAL
Event ID nm041814a
See the “Contributed Solutions” for a list of all contributed location parameters.

Contributed Solutions