M3.2 earthquake 10 km WSW of Shamrock, Oklahoma

A magnitude 3.2 earthquake struck 10 km WSW of Shamrock, Oklahoma on Sun, Jul 16, 2017, 10:51 PM CDT (03:51 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.3 10 km E of Red Rock, Oklahoma. This one was a foreshock.

Map

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

1 person 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: 83 in the 60 days after this one and 45 in the 30 days before it.

The first 60 of 83.

From the USGS Earthquake Hazards Program and its partner networks, event us20009wux. Read Tue, Sep 22, 2026, 9:34 AM UTC.