M4.5 Earthquake 25 km SW of Sipí, Colombia — September 16, 2026
2026-09-16 20:14:30 UTC (2026-09-16) · approx. 3:14 PM UTC-5 local
On September 16, 2026 at 20:14 UTC, a magnitude 4.5 shallow crustal earthquake struck 25 km SW of Sipí, Colombia, at a depth of 62.3 km and coordinates 4.4937°, -76.8127°. This earthquake was detected by 55 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
-76.8127°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Sipí, Colombia?
The magnitude 4.5 earthquake that struck 25 km SW of Sipí, Colombia on September 16, 2026 at 20:14 UTC had a depth of 62.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 4.4937°, -76.8127°, which is 25 km SW of Sipí, 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: us6000twwu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 16, 2026). M4.5 Earthquake 25 km SW of Sipí, Colombia — September 16, 2026. Retrieved October 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000twwu/