M4.4 Earthquake 74 km ESE of Puerto Gaitán, Colombia — September 29, 2020
2020-09-29 22:05:39 UTC (2020-09-29) · approx. 5:05 PM UTC-5 local
On September 29, 2020 at 22:05 UTC, a magnitude 4.4 shallow crustal earthquake struck 74 km ESE of Puerto Gaitán, Colombia, at a depth of 25.3 km and coordinates 4.0316°, -71.4695°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-71.4695°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Puerto Gaitán, Colombia?
The magnitude 4.4 earthquake that struck 74 km ESE of Puerto Gaitán, Colombia on September 29, 2020 at 22:05 UTC had a depth of 25.3 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000c2xu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 29, 2020). M4.4 Earthquake 74 km ESE of Puerto Gaitán, Colombia — September 29, 2020. Retrieved December 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c2xu/