M4.5 Earthquake 8 km SW of Riosucio, Colombia — May 4, 2025
2025-05-04 17:52:54 UTC (2025-05-04) · approx. 12:52 PM UTC-5 local
On May 4, 2025 at 17:52 UTC, a magnitude 4.5 shallow crustal earthquake struck 8 km SW of Riosucio, Colombia, at a depth of 41.4 km and coordinates 7.3789°, -77.1646°. This earthquake was detected by 52 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
-77.1646°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 SW of Riosucio, Colombia on May 4, 2025 at 17:52 UTC had a depth of 41.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 7.3789°, -77.1646°, which is 8 km SW 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: us7000px4d). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, May 4, 2025). M4.5 Earthquake 8 km SW of Riosucio, Colombia — May 4, 2025. Retrieved July 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000px4d/