Kansas earthquakes

M3.1 earthquake 6 km SE of Harper, Kansas

A magnitude 3.1 earthquake struck 6 km SE of Harper, Kansas on Tue, Sep 30, 2014, 10:24 AM CDT (15:24 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.9 4 km ENE of Milan, Kansas. This one was a foreshock.

Harper forecast More in Kansas

Map

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, Lg-wave body), minor
Magnitude from: USGS National Earthquake Information Center
Local time: Tue, Sep 30, 2014, 10:24 AM CDT
UTC: 2014-09-30 15:24:31 UTC
Depth: 5.0 km (3.1 mi), shallow
Epicenter: 37.249° N, 97.972° W
Region: Kansas
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
3.1	mb_Lg, Lg-wave body	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.06 · 78 stations
3.19	ML, local (Richter)	ISMPKANSAS	Final · ±0.173 · 14 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 2.5 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.06
Depth from: OPERATOR_ASSIGNED
Station coverage gap: 95°
Stations used: 30

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 201 in the 60 days after this one and 152 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Kansas earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usb000shdj (also filed as ismpkansas70037208). Read Fri, Oct 2, 2026, 8:59 PM UTC.