2.5

M2.5 Earthquake 2 km NW of McConnell AFB, KansasOctober 24, 2021

2021-10-24 22:33:12 UTC (2021-10-24) · approx. 4:33 PM UTC-6 local

Felt by 183 people across surrounding communities.

MagnitudeM2.5(mb_lg)
Time22:33 UTC4:33 PM UTC-6
Depth6.5 kmshallow crustal
Coordinates37.649°, -97.276°
Felt by183DYFI responses
Status✓ Reviewed by USGS

On October 24, 2021 at 22:33 UTC, a magnitude 2.5 shallow crustal earthquake struck 2 km NW of McConnell AFB, Kansas, at a depth of 6.5 km and coordinates 37.6489°, -97.2764°.

Physical scale: An earthquake of magnitude 2.5 releases seismic energy equivalent to roughly 84.8 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 32 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 37.65°, -97.28°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 183 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 M2.5 earthquake near 2 km NW of McConnell AFB, Kansas

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

Earthquake Details

Magnitude
2.5 mb_lg
Depth
6.5 km
shallow crustal
Location
37.6489°N
-97.2764°E
Felt Reports
183
DYFI responses
Community Intensity
4.1
CDI from reports

Technical Information

Event ID
us6000fxa2
Event Type
earthquake
Status
✓ Reviewed
Significance
171
Azimuthal Gap
96.0°
Min Station Distance
0.070°
RMS Residual
0.39 sec
Last Updated
2022-09-13 05:17:45 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near McConnell AFB, Kansas?

The magnitude 2.5 earthquake that struck 2 km NW of McConnell AFB, Kansas on October 24, 2021 at 22:33 UTC had a depth of 6.5 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 37.6489°, -97.2764°, which is 2 km NW of McConnell AFB, Kansas.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000fxa2). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, October 24, 2021). M2.5 Earthquake 2 km NW of McConnell AFB, KansasOctober 24, 2021. Retrieved September 13, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000fxa2/