The Ohio Seismic Network (OhioSeis) consists of 25 volunteer, cooperative seismograph stations located at colleges, universities, and other institutions, and coordinated by the Division of Geological Survey of the Ohio Department of Natural Resources. Network operations are managed from the Ohio Earthquake Information Center at the Division's facility at Alum Creek State Park in Delaware County, which also hosts a U.S. Geological Survey National Seismic Network station. OhioSeis was begun in 1999 with partial funding from the Federal Emergency Management Agency through the Ohio Emergency Management Agency. Each station uses a Macintosh computer, an EAI S102 broadband vertical seismometer, and a GPS receiver to continuously record ground motion throughout the state for detection and location of local and regional earthquakes. All stations are connected to the Internet for real-time data access by researchers with appropriate hardware and software. The system was designed and developed by Dr. Larry J. Ruff at the University of Michigan.

   OHIO SEISMIC NETWORK
 

• About OhioSeis
• The Ohio Seismic Network--2003, Seismological Research Letters [1.98 KB pdf]
• Ohio Earthquake Information Center
• Station location map with station information
• OhioSeis station data
• Research
   
   

   OHIO EARTHQUAKE INFORMATION
 

• Frequently Asked Questions About Ohio Earthquakes
• Earthquakes in Ohio (Educational Leaflet No. 9, 618 KB PDF*)
• Catalog of Ohio Earthquakes
• Interactive map of earthquake epicenters in Ohio
• Map of earthquake epicenters in Ohio
• Map of deep structures in Ohio
• Seismic Intensity Scales
• Earthquake hazard/risk in Ohio

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   RECENT OHIO/REGIONAL EARTHQUAKES
 

• Fostoria, Seneca County, Ohio, February 25, 2010
• Wickliffe, Lake County, Ohio, February 4, 2010
  
• Lake Erie, Ohio, October 21, 2009
• Gallia County, Ohio, April 24, 2009
• Shore of Lake Erie, February 23, 2009
• Shore of Lake Erie, February 14, 2009
• Western Shelby County, September 30, 2008
• Shore of Lake Erie, September 20, 2008
• Shore of Lake Erie, September 18, 2008
• Shore of Lake Erie, August 14, 2008
• Illinois Earthquake, April 18, 2008
• Lake Erie, Ohio January 9, 2008
• Lake Erie, Ohio October 18, 2007
• Lake Erie, Ohio October 17, 2007
• Lake Erie, Ohio October 16, 2007