M3.1 earthquake 3 km SW of Jefferson, Oklahoma

A magnitude 3.1 earthquake struck 3 km SW of Jefferson, Oklahoma on Wed, Feb 11, 2015, 5:56 PM CST (23:56 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.1 6 km SE of Marshall, Oklahoma. This one was a foreshock.

Map

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

2 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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: at least 202 in the 60 days after this one and at least 200 in the 30 days before it.

The first 60 of at least 202.

From the USGS Earthquake Hazards Program and its partner networks, event usb000tnl6 (also filed as us10000b9i). Read Wed, Sep 30, 2026, 8:47 PM UTC.