M4.5 Earthquake 8 km ESE of Riosucio, Colombia — October 1, 2023
2023-10-01 22:42:18 UTC (2023-10-01) · approx. 5:42 PM UTC-5 local
On October 1, 2023 at 22:42 UTC, a magnitude 4.5 shallow crustal earthquake struck 8 km ESE of Riosucio, Colombia, at a depth of 37.5 km and coordinates 7.4210°, -77.0416°. This earthquake was detected by 37 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-77.0416°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Riosucio, Colombia?
The magnitude 4.5 earthquake that struck 8 km ESE of Riosucio, Colombia on October 1, 2023 at 22:42 UTC had a depth of 37.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 7.4210°, -77.0416°, which is 8 km ESE of Riosucio, Colombia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000lc5g). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 1, 2023). M4.5 Earthquake 8 km ESE of Riosucio, Colombia — October 1, 2023. Retrieved December 14, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lc5g/