M2.4 Earthquake 7 km NE of Mayfield, Kansas — December 20, 2020
2020-12-20 22:38:49 UTC (2020-12-20) · approx. 4:38 PM UTC-6 local
Felt by 11 people across nearby locations.
On December 20, 2020 at 22:38 UTC, a magnitude 2.4 shallow crustal earthquake struck 7 km NE of Mayfield, Kansas, at a depth of 5.0 km and coordinates 37.2983°, -97.4831°.
Physical scale: An earthquake of magnitude 2.4 releases seismic energy equivalent to roughly 60.0 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 27 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 11 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
-97.4831°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 2.4 earthquake near Mayfield, Kansas?
The magnitude 2.4 earthquake that struck 7 km NE of Mayfield, Kansas on December 20, 2020 at 22:38 UTC had a depth of 5.0 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 37.2983°, -97.4831°, which is 7 km NE of Mayfield, Kansas.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.4 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000cssi). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 20, 2020). M2.4 Earthquake 7 km NE of Mayfield, Kansas — December 20, 2020. Retrieved February 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000cssi/