Oklahoma earthquakes

M3.1 earthquake 12 km SW of Bradley, Oklahoma

A magnitude 3.1 earthquake struck 12 km SW of Bradley, Oklahoma on Fri, Dec 4, 2015, 7:14 PM CST (01:14 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.2 7 km N of Spencer, Oklahoma. This one was a foreshock.

Alex 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
3.1 (ml), minor
Local time
UTC
2015-12-05 01:14:18 UTC
Depth
10.5 km (6.5 mi), shallow
Epicenter
34.804° N, 97.806° W
Region
Oklahoma
Felt reports
2
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

2 people reported to the USGS what they felt; the strongest reported shaking was II, weak 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 4.7 km horizontally, 7.8 km in depth
Station coverage gap
181°, poorly surrounded by stations
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: 4 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.710 km SSW of Alex, Oklahoma · 3943 days ago · 3 km deep · 3 km away
  2. 3.07 km N of Spencer, Oklahoma · 3923 days ago · 6 km deep · 96 km away · felt by 1
  3. 3.27 km N of Spencer, Oklahoma · 3923 days ago · 6 km deep · 95 km away · felt by 10
  4. 3.47 km N of Spencer, Oklahoma · 3922 days ago · 6 km deep · 95 km away · felt by 41

Before

  1. 2.41 km SW of Choctaw, Oklahoma · 3951 days ago · 10 km deep · 90 km away · felt by 2
  2. 2.61 km SW of Dibble, Oklahoma · 3954 days ago · 5 km deep · 28 km away · felt by 1
  3. 2.62 km SSW of Dibble, Oklahoma · 3954 days ago · 7 km deep · 27 km away
  4. 2.69 km SSW of Alex, Oklahoma · 3954 days ago · 8 km deep · 3 km away
  5. 2.58 km SSW of Alex, Oklahoma · 3960 days ago · 5 km deep · 4 km away
  6. 2.79 km SSW of Okarche, Oklahoma · 3973 days ago · 2 km deep · 95 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000448c. Read Tue, Sep 22, 2026, 2:55 PM UTC.