Oklahoma earthquakes

M3.1 earthquake 3 km WSW of Marland, Oklahoma

A magnitude 3.1 earthquake struck 3 km WSW of Marland, Oklahoma on Sun, Jun 21, 2015, 7:25 AM CDT (12:25 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.5 4 km NNE of Crescent, 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
3.1 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2015-06-21 12:25:00 UTC
Depth
6.1 km (3.8 mi), shallow
Epicenter
36.553° N, 97.190° W
Region
Oklahoma
Felt reports
2
Strongest shaking
V, moderate shaking
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

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

Felt at Marland and Stillwater.

From the USGS event page for us10002kp4. 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
V, moderate shaking
Peak ground acceleration
17.1% of gravity
Peak ground velocity
-0.6 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

2 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?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 1.7 km horizontally, 7.6 km in depth
Station coverage gap
63°
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 202 in the 60 days after this one and at least 199 in the 30 days before it.

After

The first 60 of at least 202.

Before

Earthquakes todayOklahoma earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10002kp4. Read Thu, Oct 1, 2026, 12:36 PM UTC.