M2.5 earthquake 8 km ESE of Byron, Oklahoma

A magnitude 2.5 earthquake struck 8 km ESE of Byron, Oklahoma on Tue, Apr 21, 2015, 7:51 PM CDT (00:51 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.0 5 km W of Fairview, Oklahoma. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event us200028cb. Read Wed, Sep 23, 2026, 5:18 AM UTC.