M4.5 Earthquake 23 km SW of Sipí, Colombia — September 18, 2026
2026-09-18 18:41:22 UTC (2 hours ago) · approx. 1:41 PM UTC-5 local
On September 18, 2026 at 18:41 UTC, a magnitude 4.5 intermediate depth earthquake struck 23 km SW of Sipí, Colombia, at a depth of 72.6 km and coordinates 4.5042°, -76.7978°. This earthquake was detected by 64 seismic stations with excellent 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
-76.7978°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 23 km SW of Sipí, Colombia on September 18, 2026 at 18:41 UTC had a depth of 72.6 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 4.5042°, -76.7978°, which is 23 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: us7000tie4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 18, 2026). M4.5 Earthquake 23 km SW of Sipí, Colombia — September 18, 2026. Retrieved September 18, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tie4/