4.5

M4.5 Earthquake 8 km SW of Riosucio, ColombiaMay 4, 2025

2025-05-04 17:52:54 UTC (2025-05-04) · approx. 12:52 PM UTC-5 local

MagnitudeM4.5(mb)
Time17:52 UTC12:52 PM UTC-5
Depth41.4 kmshallow crustal
Coordinates7.379°, -77.165°
Felt byNo felt reports
Status✓ Reviewed by USGS

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.

Map showing earthquake epicenter at 7.38°, -77.16°

Earthquake Details

Magnitude
4.5 mb
Depth
41.4 km
shallow crustal
Location
7.3789°N
-77.1646°E

Technical Information

Event ID
us7000px4d
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
52
Azimuthal Gap
96.0°
Min Station Distance
1.667°
RMS Residual
0.85 sec
Last Updated
2025-07-12 16:30:45 UTC

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, ColombiaMay 4, 2025. Retrieved July 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000px4d/