This cover contains locations of two COCORP lines that cross thestudy area.
This cover contains the location of global positioning systemstations that are located within the project boundary. Several GPSnetworks with various monument spacings are being used to monitordeformation in parts or all of the Mississippi embayment. One n
This cover includes seismic reflection lines that have geophysicalcross-sectional interpretations constraining subsurface structuresthat may penetrate to hypocentral depths. Lines were gathered fromtheses, dissertations, and publications.
This cover includes seismic refraction lines that have geophysicalcross sectional interpretations constraining subsurface structuresthat may penetrate to hypocentral depths. Lines were gathered fromtheses, dissertations, and publications.
This cover contains the locations of stations deployed in the temporarynetwork by M.W. Hamburger, G.L.Povlis, and others atIndiana University from October 1995 through June 1996.20 three-component digital instruments were deployednear the Wabash River. 10
This data set shows the locations of stations, samples, photographs and videos collected by the U.S. Geological Survey in the New York Bight on four research cruises carried out between 1996 and 2000.
This cover contains station locations of the New Madrid SeismicNetwork within the study boundary. The network is a cooperativeproject of Saint Louis University and Memphis State University.Operation of the network has been continuous since June 1975, buto
Lines in this cover show where gravity oe aeromagnetic data have beenmodelled to constrain subsurface structure. Gravity andmagnetic signatures result from deep structure, such as might be athypocentral depths of earthquakes. We show only the lines for wh
Magnetotelluric soundings give data that can help define the lelectricamagnetic properties of rocks, and with othergeophysical data help define thestructure of the shallow crust where earthquakes occur. The soundingpoints in this cover show where data was
NOTE: Location of one point, near -88.65, 38.95, was incorrectwhen Sheet A was published. The location is .5 degree south, andis corrected in this dataset. This cover contains locations of places where greatest horizontalcompressive stress (S(Hmax)) orie
This cover contains locations of strong motion accelerograph instrumentslocated in the lower Wabash Valley. The instruments are operated byLamont-Doherty Geological Observatory, the University of Kentucky, andthe U.S. Army Corps of Engineers Strong Motion