The Ohio Seismic Network, OHIOSEIS, consists of 25 volunteer, cooperative seismograph stations at colleges, universities, and other institutions, that are 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 U.S. Geological Survey National Seismic Network station ACSO.

This web site contains links to all network stations, OhioSeis forms and procedures documents, USGS sites, etc. This page is intended for station operators and seismologists and less for the public.

Click here to learn more about how to view OhioSeis waveform data.