M1.8 earthquake 10 km N of Chester, Oklahoma

A magnitude 1.8 earthquake struck 10 km N of Chester, Oklahoma on Mon, Jul 1, 2019, 2:59 AM CDT (07:59 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.2 6 km NNE of Loyal, Oklahoma. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event ok2019mthx. Read Tue, Sep 22, 2026, 5:21 PM UTC.