M2.3 Earthquake 4 km E of Herculaneum, Missouri — January 8, 2025
2025-01-08 23:37:19 UTC (2025-01-08) · approx. 5:37 PM UTC-6 local
Felt by 14 people across nearby locations.
On January 8, 2025 at 23:37 UTC, a magnitude 2.3 shallow crustal earthquake struck 4 km E of Herculaneum, Missouri, at a depth of 9.2 km and coordinates 38.2762°, -90.3283°. This earthquake was detected by 13 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 87, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 2.3 releases seismic energy equivalent to roughly 45.5 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 24 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 14 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
-90.3283°E
Technical Information
Common Questions
How strong was the magnitude 2.3 earthquake near Herculaneum, Missouri?
The magnitude 2.3 earthquake that struck 4 km E of Herculaneum, Missouri on January 8, 2025 at 23:37 UTC had a depth of 9.2 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 38.2762°, -90.3283°, which is 4 km E of Herculaneum, Missouri.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.3 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: nm60596336). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, January 8, 2025). M2.3 Earthquake 4 km E of Herculaneum, Missouri — January 8, 2025. Retrieved May 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/nm60596336/