Oklahoma earthquakes

M3.6 earthquake 7 km NNE of Nash, Oklahoma

A magnitude 3.6 earthquake struck 7 km NNE of Nash, Oklahoma on Fri, Dec 25, 2015, 1:12 PM CST (19:12 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M5.1 18 km SE of Waynoka, Oklahoma. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
3.6 (Mwr, regional moment), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2015-12-25 19:12:25 UTC
Depth
6.2 km (3.9 mi), shallow
Epicenter
36.729° N, 98.012° W
Region
Oklahoma
Felt reports
8
Strongest shaking
IV, light shaking
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

Felt at Carrier, Oklahoma City and Tulsa. Also felt at El Dorado, Wellington and Wichita, Kansas.

From the USGS event page for us100049hz. U.S. Geological Survey text and figures are in the public domain.

Shaking

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

Strongest estimated
IV, light shaking
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

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

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

Fault motion and ground failure

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

Faulting
Strike-slip
Moment magnitude
3.6 Mwr
Nodal plane 1
Strike 128°, dip 57°, rake -15°
Nodal plane 2
Strike 226°, dip 77°, rake -146°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 1.9 km horizontally, 5.7 km in depth
Magnitude uncertainty
±0.06
Station coverage gap
49°
Stations used
0

Nearest places

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

Nearby

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

After

The first 60 of at least 200.

Before

Earthquakes todayOklahoma earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us100049hz. Read Thu, Oct 1, 2026, 7:38 AM UTC.