M2.4 earthquake 8 km NNE of Union City, Oklahoma

A magnitude 2.4 earthquake struck 8 km NNE of Union City, Oklahoma on Mon, Aug 8, 2016, 4:57 PM CDT (21:57 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.0 2 km SW of Wellston, Oklahoma. This one was a foreshock.

Map

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

The USGS’s account of the effects of this earthquake.

Felt at El Reno.

From the USGS event page for us10006c67. U.S. Geological Survey text and figures are in the public domain.

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: 91 in the 60 days after this one and 53 in the 30 days before it.

The first 60 of 91.

From the USGS Earthquake Hazards Program and its partner networks, event us10006c67. Read Sun, Oct 4, 2026, 5:12 PM UTC.