M2.8 Earthquake 4 km NNW of El Moro, Colorado — June 4, 2022
2022-06-04 19:54:28 UTC (2022-06-04) · approx. 12:54 PM UTC-7 local
Felt by 12 people across nearby locations.
On June 4, 2022 at 19:54 UTC, a magnitude 2.8 shallow crustal earthquake struck 4 km NNW of El Moro, Colorado, at a depth of 7.0 km and coordinates 37.2645°, -104.4786°. This earthquake was detected by 18 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 124, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 2.8 releases seismic energy equivalent to roughly 239 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 52 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 12 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
-104.4786°E
Technical Information
Common Questions
How strong was the magnitude 2.8 earthquake near El Moro, Colorado?
The magnitude 2.8 earthquake that struck 4 km NNW of El Moro, Colorado on June 4, 2022 at 19:54 UTC had a depth of 7.0 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 37.2645°, -104.4786°, which is 4 km NNW of El Moro, Colorado.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.8 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000hf0l). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, June 4, 2022). M2.8 Earthquake 4 km NNW of El Moro, Colorado — June 4, 2022. Retrieved August 13, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hf0l/