Pennsylvania earthquakes

M4.5 earthquake 2 km N of Cornwall, Pennsylvania

A magnitude 4.5 earthquake struck 2 km N of Cornwall, Pennsylvania on Tue, May 12, 1964, 2:45 AM GMT-4 (06:45 UTC), 1 km (1 mi) below the surface.

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Map

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The earthquake

Magnitude
4.5 (mb), light
Local time
UTC
1964-05-12 06:45:10 UTC
Depth
1.0 km (0.6 mi), shallow
Epicenter
40.298° N, 76.411° W
Strongest shaking
VI, strong shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
VI, strong shaking
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.

None recorded.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ushis2703 (also filed as atlas19640512064514). Read Wed, Sep 23, 2026, 5:06 AM UTC.