M4.3 Earthquake 28 km SSE of Ikungi, Tanzania — September 17, 2023
2023-09-17 18:09:30 UTC (2023-09-17) · approx. 8:09 PM UTC+2 local
On September 17, 2023 at 18:09 UTC, a magnitude 4.3 shallow crustal earthquake struck 28 km SSE of Ikungi, Tanzania, at a depth of 10.0 km and coordinates -5.3788°, 34.8535°.
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
34.8535°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Ikungi, Tanzania?
The magnitude 4.3 earthquake that struck 28 km SSE of Ikungi, Tanzania on September 17, 2023 at 18:09 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: us7000kwca). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, September 17, 2023). M4.3 Earthquake 28 km SSE of Ikungi, Tanzania — September 17, 2023. Retrieved December 2, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kwca/