M4.3 Earthquake 26 km WNW of Chaparral, Colombia — September 28, 2026
2026-09-28 08:39:55 UTC (1 day ago) · approx. 3:39 AM UTC-5 local
On September 28, 2026 at 08:39 UTC, a magnitude 4.3 shallow crustal earthquake struck 26 km WNW of Chaparral, Colombia, at a depth of 10.0 km and coordinates 3.7929°, -75.7141°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-75.7141°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Chaparral, Colombia?
The magnitude 4.3 earthquake that struck 26 km WNW of Chaparral, Colombia on September 28, 2026 at 08:39 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000ty3z). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 28, 2026). M4.3 Earthquake 26 km WNW of Chaparral, Colombia — September 28, 2026. Retrieved September 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ty3z/