M3.3 earthquake 12 km N of Seminole, Oklahoma

A magnitude 3.3 earthquake struck 12 km N of Seminole, Oklahoma on Mon, Aug 17, 2015, 6:53 AM CDT (11:53 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.4 6 km W of Arcadia, Oklahoma. This one was a foreshock.

Map

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

6 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: 140 in the 60 days after this one and 54 in the 30 days before it.

The first 60 of 140.

From the USGS Earthquake Hazards Program and its partner networks, event us100032uf. Read Tue, Sep 22, 2026, 8:45 PM UTC.