M4.6 Earthquake 31 km WSW of Nchelenge, Zambia — July 25, 2020
2020-07-25 19:43:24 UTC (2020-07-25) · approx. 9:43 PM UTC+2 local
On July 25, 2020 at 19:43 UTC, a magnitude 4.6 shallow crustal earthquake struck 31 km WSW of Nchelenge, Zambia, at a depth of 10.0 km and coordinates -9.4460°, 28.4639°.
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
28.4639°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Nchelenge, Zambia?
The magnitude 4.6 earthquake that struck 31 km WSW of Nchelenge, Zambia on July 25, 2020 at 19:43 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -9.4460°, 28.4639°, which is 31 km WSW of Nchelenge, Zambia.
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.
Actions
Authoritative source: USGS event page (event ID: us6000b43h). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, July 25, 2020). M4.6 Earthquake 31 km WSW of Nchelenge, Zambia — July 25, 2020. Retrieved October 3, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000b43h/