Oklahoma earthquakes

M3.8 earthquake 8 km SSW of Arcadia, Oklahoma

A magnitude 3.8 earthquake struck 8 km SSW of Arcadia, Oklahoma on Mon, Nov 4, 2013, 10:01 PM CST (04:01 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.5 8 km SW of Arcadia, Oklahoma. This one was a foreshock.

Jones forecastMore in Oklahoma

Map

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

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The earthquake

Magnitude
3.8 (mwr), minor
Local time
UTC
2013-11-05 04:01:34 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
35.604° N, 97.371° W
Region
Oklahoma
Felt reports
339
Strongest shaking
IV, light shaking
Tsunami flag
No
Status
Reviewed by a seismologist

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?

339 people reported to the USGS what they felt; the strongest reported shaking was V, moderate 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
3.8 Mwr
Nodal plane 1
Strike 34°, dip 84°, rake -157°
Nodal plane 2
Strike 302°, dip 67°, rake -6°

How well it is located

Reviewed by a seismologist.

Magnitude uncertainty
±0.05
Depth from
OPERATOR_ASSIGNED
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: 93 in the 60 days after this one and 27 in the 30 days before it.

After

The first 60 of 93.

Before

Earthquakes todayOklahoma earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usb000ksnp. Read Tue, Sep 22, 2026, 8:22 PM UTC.