M3.3 earthquake 17 km SE of Waynoka, Oklahoma

A magnitude 3.3 earthquake struck 17 km SE of Waynoka, Oklahoma on Sat, Oct 8, 2016, 6:10 AM CDT (11:10 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.8 9 km SSW of Helena, 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: 111 in the 60 days after this one and 59 in the 30 days before it.

The first 60 of 111.

From the USGS Earthquake Hazards Program and its partner networks, event us20007csa. Read Tue, Sep 22, 2026, 7:38 PM UTC.