M4.5 Earthquake 132 km N of Semera, Ethiopia — August 25, 2025
2025-08-25 20:00:10 UTC (2025-08-25) · approx. 11:00 PM UTC+3 local
On August 25, 2025 at 20:00 UTC, a magnitude 4.5 shallow crustal earthquake struck 132 km N of Semera, Ethiopia, at a depth of 10.0 km and coordinates 12.9859°, 40.8964°. This earthquake was detected by 30 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
40.8964°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Semera, Ethiopia?
The magnitude 4.5 earthquake that struck 132 km N of Semera, Ethiopia on August 25, 2025 at 20:00 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 12.9859°, 40.8964°, which is 132 km N of Semera, Ethiopia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000qxbt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 25, 2025). M4.5 Earthquake 132 km N of Semera, Ethiopia — August 25, 2025. Retrieved November 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qxbt/