USGS and University of Texas at Austin collaborated on this study. Data are from high-resolution seismic reflection profile of about 10.8 km length near Harrisburg, AR.
EarthScope Consortium operates the
NSF Geodetic Facility for the Advancement of Geoscience (GAGE)
and NSF Seismological Facility for the Advancement of Geoscience (SAGE).
Any opinions, findings and conclusions, or recommendations expressed
in this material do not necessarily reflect the views of the
U.S. National Science Foundation.