M4.6 Earthquake 5 km SSW of Istmina, Colombia — September 28, 2020
2020-09-28 22:59:45 UTC (2020-09-28) · approx. 5:59 PM UTC-5 local
On September 28, 2020 at 22:59 UTC, a magnitude 4.6 intermediate depth earthquake struck 5 km SSW of Istmina, Colombia, at a depth of 78.1 km and coordinates 5.1128°, -76.7076°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-76.7076°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Istmina, Colombia?
The magnitude 4.6 earthquake that struck 5 km SSW of Istmina, Colombia on September 28, 2020 at 22:59 UTC had a depth of 78.1 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 5.1128°, -76.7076°, which is 5 km SSW of Istmina, Colombia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000c4r3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 28, 2020). M4.6 Earthquake 5 km SSW of Istmina, Colombia — September 28, 2020. Retrieved December 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c4r3/