M4.7 Earthquake 159 km N of Caluula, Somalia — September 15, 2026
2026-09-15 23:46:59 UTC (1 hour ago) · approx. 2:46 AM UTC+3 local
Aftershock of the M6.0 mainshock.
On September 15, 2026 at 23:46 UTC, a magnitude 4.7 shallow crustal earthquake struck 159 km N of Caluula, Somalia, at a depth of 10.0 km and coordinates 13.4116°, 50.7312°. This earthquake was detected by 36 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 6.0 mainshock that occurred 19 days ago 145 km N of Caluula, Somalia. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for weeks to months as stresses on surrounding faults redistribute.
Earthquake Details
50.7312°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Caluula, Somalia?
The magnitude 4.7 earthquake that struck 159 km N of Caluula, Somalia on September 15, 2026 at 23:46 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 13.4116°, 50.7312°, which is 159 km N of Caluula, Somalia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M6.0 one earlier?
No. This magnitude 4.7 earthquake is an aftershock of the larger magnitude 6.0 mainshock that occurred earlier 145 km N of Caluula, Somalia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Actions
Authoritative source: USGS event page (event ID: us7000thr6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 15, 2026). M4.7 Earthquake 159 km N of Caluula, Somalia — September 15, 2026. Retrieved September 16, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000thr6/