Preliminary Report on the
Ohio-Pennsylvania (Pymatuning) Earthquake of September 25, 1998
September 25, 1998--A moderate
earthquake occurred near the border of Ohio and Pennsylvania about 15 miles north of
Sharon, Pennsylvania at 1:53 PM MDT on September 25, 1998 (3:53 PM EDT in Ohio). A
preliminary magnitude of 5.2 was computed for this earthquake. The magnitude and location
may change slightly as additional data are received from other seismograph stations. The
earthquake was felt in parts of Michigan, New York, Ohio and Pennsylvania. It was also
felt in southern Ontario, Canada. This is the largest earthquake in this area since a
magnitude 5.0 which occurred January 31, 1986. There have been no reports of damage. MCEER
has no reports of damage or casualty at this time.
figures were taken from USGS data on
the 98/09/25 event
For More Information
The Pennsylvania Topographic & Geologic Survey has prepared a more extensive summary
of this earthquake.