Kansas earthquakes

M3.1 earthquake 7 km SE of Harper, Kansas

A magnitude 3.1 earthquake struck 7 km SE of Harper, Kansas on Wed, Aug 20, 2014, 11:33 AM CDT (16:33 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.3 5 km SW of Danville, Kansas. This one was a foreshock.

Harper forecast More in Kansas

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

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The earthquake

Magnitude: 3.1 (mb_lg), minor
Local time: Wed, Aug 20, 2014, 11:33 AM CDT
UTC: 2014-08-20 16:33:58 UTC
Depth: 6.7 km (4.2 mi), shallow
Epicenter: 37.246° N, 97.961° W
Region: Kansas
Felt reports: 9
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

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

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 3.3 km horizontally, 3.7 km in depth
Magnitude uncertainty: ±0.05
Depth from: FROM_LOCATION
Station coverage gap: 97°
Stations used: 32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usb000s4lf (also filed as ismpkansas70025748). Read Tue, Sep 22, 2026, 10:27 PM UTC.