3.1

M3.1 Earthquake 2 km NW of Weskan, KansasMarch 28, 2026

2026-03-28 20:31:58 UTC (2026-03-28) · approx. 1:31 PM UTC-7 local

MagnitudeM3.1(mb_lg)
Time20:31 UTC1:31 PM UTC-7
Depth5.0 kmshallow crustal
Coordinates38.882°, -101.990°
Felt by8DYFI responses
Status✓ Reviewed by USGS

On March 28, 2026 at 20:31 UTC, a magnitude 3.1 shallow crustal earthquake struck 2 km NW of Weskan, Kansas, at a depth of 5.0 km and coordinates 38.8819°, -101.9899°.

Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 38.88°, -101.99°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 8 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M3.1 earthquake near 2 km NW of Weskan, Kansas

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
3.1 mb_lg
Depth
5.0 km
shallow crustal
Location
38.8819°N
-101.9899°E
Felt Reports
8
DYFI responses
Community Intensity
3.4
CDI from reports

Technical Information

Event ID
us7000s8fp
Event Type
earthquake
Status
✓ Reviewed
Significance
151
Stations Used
22
Azimuthal Gap
50.0°
Min Station Distance
0.514°
RMS Residual
0.43 sec
Last Updated
2026-05-05 13:03:42 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near Weskan, Kansas?

The magnitude 3.1 earthquake that struck 2 km NW of Weskan, Kansas on March 28, 2026 at 20:31 UTC had a depth of 5.0 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.1 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000s8fp). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, March 28, 2026). M3.1 Earthquake 2 km NW of Weskan, KansasMarch 28, 2026. Retrieved May 13, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000s8fp/