Kansas earthquakes

M2.5 earthquake 4 km SSE of Harper, Kansas

A magnitude 2.5 earthquake struck 4 km SSE of Harper, Kansas on Thu, Nov 20, 2014, 10:39 PM CST (04:39 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.0 6 km NE of Hunter, Oklahoma. 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: 2.5 (mb_Lg, Lg-wave body), micro
Magnitude from: USGS National Earthquake Information Center
Local time: Thu, Nov 20, 2014, 10:39 PM CST
UTC: 2014-11-21 04:39:43 UTC
Depth: 8.2 km (5.1 mi), shallow
Epicenter: 37.252° N, 98.013° W
Region: Kansas
Felt reports: 6
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
2.5	mb_Lg, Lg-wave body	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.12 · 20 stations
2.67	ML, local (Richter)	ISMPKANSAS	Final · ±0.172 · 17 stations

What happened

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

Felt at Anthony and Harper.

From the USGS event page for usb000syh3. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

6 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 1.6 km horizontally, 3.8 km in depth
Magnitude uncertainty: ±0.12
Depth from: FROM_LOCATION
Station coverage gap: 63°
Stations used: 72

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 at least 200 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 usb000syh3 (also filed as ismpkansas70049863). Read Sat, Oct 3, 2026, 2:25 AM UTC.