M4.3 Earthquake 94 km NW of Semera, Ethiopia — January 25, 2023
2023-01-25 23:38:26 UTC (2023-01-25) · approx. 2:38 AM UTC+3 local
On January 25, 2023 at 23:38 UTC, a magnitude 4.3 shallow crustal earthquake struck 94 km NW of Semera, Ethiopia, at a depth of 10.0 km and coordinates 12.5018°, 40.5205°.
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
40.5205°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Semera, Ethiopia?
The magnitude 4.3 earthquake that struck 94 km NW of Semera, Ethiopia on January 25, 2023 at 23:38 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: us6000jjan). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 25, 2023). M4.3 Earthquake 94 km NW of Semera, Ethiopia — January 25, 2023. Retrieved April 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jjan/