M3.3 earthquake 4 km WNW of Lucien, Oklahoma

A magnitude 3.3 earthquake struck 4 km WNW of Lucien, Oklahoma on Wed, Jul 12, 2017, 10:16 PM CDT (03:16 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.2 10 km WSW of Shamrock, Oklahoma. This one was a foreshock.

Map

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

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

7 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 3 in the 30 days before it.

The first 60 of 196.

From the USGS Earthquake Hazards Program and its partner networks, event us20009vvg. Read Tue, Sep 22, 2026, 7:47 PM UTC.