M3.4 earthquake 11 km N of Dacoma, Oklahoma

A magnitude 3.4 earthquake struck 11 km N of Dacoma, Oklahoma on Sat, Aug 22, 2015, 11:30 PM CDT (04:30 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.5 5 km SW of Jet, Oklahoma. This one was a foreshock.

Map

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

5 people 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 us100034a6. Read Tue, Sep 22, 2026, 3:33 PM UTC.