M3.3 earthquake 9 km ESE of Jefferson, Oklahoma

A magnitude 3.3 earthquake struck 9 km ESE of Jefferson, Oklahoma on Sat, Mar 24, 2018, 3:19 AM CDT (08:19 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.6 12 km WSW of Ralston, Oklahoma. This one was a foreshock.

Map

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

3 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: 150 in the 60 days after this one and 49 in the 30 days before it.

The first 60 of 150.

From the USGS Earthquake Hazards Program and its partner networks, event us1000d8j1. Read Tue, Sep 22, 2026, 9:18 PM UTC.