Kansas earthquakes

M3.4 earthquake 8 km SE of Harper, Kansas

A magnitude 3.4 earthquake struck 8 km SE of Harper, Kansas on Wed, Feb 22, 2017, 10:31 AM CST (16:31 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.8 2 km NNW of Lambert, Oklahoma. 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: 3.4 (ml), minor
Local time: Wed, Feb 22, 2017, 10:31 AM CST
UTC: 2017-02-22 16:31:46 UTC
Depth: 4.1 km (2.5 mi), shallow
Epicenter: 37.227° N, 97.975° W
Region: Kansas
Felt reports: 18
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

18 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 1.6 km horizontally, 3.7 km in depth
Magnitude uncertainty: ±0.20
Station coverage gap: 141°
Stations used: 25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 140 in the 60 days after this one and 59 in the 30 days before it.

After

The first 60 of 140.

Before

Earthquakes today Kansas earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20008lh5 (also filed as ismpkansas70221288). Read Tue, Sep 22, 2026, 11:27 PM UTC.