Matthew Johnson
Geological Research at the IGS

CUSEC-SG Historic Earthquake Epicenters and Active Seismic Monitoring Stations

Status Start Date End Date Locations
completed Dec 7, 2015 Jan 30, 2016
Director: John Steinmetz
Other Researchers: Chris Dintaman, Matthew Johnson
Funding: Central United States Earthquake Consortium State Geologists (CUSEC-SG)
Issue: The locations of historic earthquake epicenters and active seismic monitoring stations in the Central United States are scattered and difficult to locate.
Objective: Through the Central United States Earthquake Consortium-State Geologists (CUSEC-SG), the IGS is compiling and mapping these important information resources. The CUSEC is composed of the eight states of Alabama, Arkansas, Illinois, Indiana, Kentucky, Mississippi, Missouri, and Tennessee.
Approach: Historic Earthquake Epicenters: The IGS utilized the earthquake database created by the U.S. Department of Energy, the Electric Power Research Institute, and the U.S. Nuclear Regulatory Commission as a technical report and entitled, “Central and Eastern United States Seismic Source Characterization for Nuclear Facilities” (CEUS SSC, 2012), to create and deliver to each of the CUSEC-SG member states a table of historic earthquake epicenters. Each table included date, location, and moment magnitude (Mw) of the epicenters, which were reviewed by the respective state geological survey for accuracy. Following state verification of the data, the IGS created digital state-based maps in ArcGIS 10.1 as well as a compilation of all eight CUSEC state historic epicenters. Active Seismic Monitoring Stations: Using the same base maps and a catalog active seismic monitoring stations from Bob Bauer (Illinois State Geological Survey, compiled 2011), the IGS updated and verified the catalog of active stations. The locations of the historic epicenters and the active seismic monitoring stations will be hosted on the IGS Website. Federally compliant FGDC metadata will be included with the maps. Additionally, copies will be sent to all eight CUSEC states for individual Website posting.
Products: IGS-hosted Website for CUSEC-SG presenting the historic epicenters of earthquakes for the eight CUSEC-SG states.
Benefits: Sharing with CUSEC and with each respective CUSEC state the locations of historic epicenters and active seismic stations to provide an authoritative and efficient means to access this important information.

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