Kansas earthquakes

M2.8 earthquake 7 km S of Argonia, Kansas

A magnitude 2.8 earthquake struck 7 km S of Argonia, Kansas on Sat, Sep 8, 2018, 2:37 AM CDT (07:37 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.1 7 km NE of Harper, Kansas. This one was a foreshock.

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Sat, Sep 8, 2018, 2:37 AM CDT
UTC: 2018-09-08 07:37:59 UTC
Depth: 6.3 km (3.9 mi), shallow
Epicenter: 37.201° N, 97.772° W
Region: Kansas
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 1.4 km horizontally, 3.3 km in depth
Magnitude uncertainty: ±0.13
Station coverage gap: 119°
Stations used: 28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 70 in the 60 days after this one and 72 in the 30 days before it.

After

The first 60 of 70.

Before

Earthquakes today Kansas earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000haxq (also filed as ismpkansas70250668). Read Tue, Sep 22, 2026, 9:30 PM UTC.