M4.2 Earthquake 129 km W of Masuguru, Tanzania — December 27, 2024
2024-12-27 23:39:39 UTC (2024-12-27) · approx. 1:39 AM UTC+2 local
On December 27, 2024 at 23:39 UTC, a magnitude 4.2 shallow crustal earthquake struck 129 km W of Masuguru, Tanzania, at a depth of 10.0 km and coordinates -11.3385°, 37.2316°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
37.2316°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Masuguru, Tanzania?
The magnitude 4.2 earthquake that struck 129 km W of Masuguru, Tanzania on December 27, 2024 at 23:39 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000pin7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, December 27, 2024). M4.2 Earthquake 129 km W of Masuguru, Tanzania — December 27, 2024. Retrieved March 8, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000pin7/