M2.6 Earthquake 4 km SE of Howardville, Missouri — April 21, 2022
2022-04-21 21:32:46 UTC (2022-04-21) · approx. 3:32 PM UTC-6 local
Felt by 13 people across nearby locations.
On April 21, 2022 at 21:32 UTC, a magnitude 2.6 shallow crustal earthquake struck 4 km SE of Howardville, Missouri, at a depth of 8.5 km and coordinates 36.5408°, -89.5672°. This earthquake was detected by 62 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 111, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 2.6 releases seismic energy equivalent to roughly 138 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 40 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 13 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-89.5672°E
Technical Information
Common Questions
How strong was the magnitude 2.6 earthquake near Howardville, Missouri?
The magnitude 2.6 earthquake that struck 4 km SE of Howardville, Missouri on April 21, 2022 at 21:32 UTC had a depth of 8.5 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 36.5408°, -89.5672°, which is 4 km SE of Howardville, Missouri.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: nm60391181). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, April 21, 2022). M2.6 Earthquake 4 km SE of Howardville, Missouri — April 21, 2022. Retrieved June 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/nm60391181/