M4.6 Earthquake 172 km N of Las Khorey, Somalia — July 28, 2021
2021-07-28 19:31:38 UTC (2021-07-28) · approx. 10:31 PM UTC+3 local
On July 28, 2021 at 19:31 UTC, a magnitude 4.6 shallow crustal earthquake struck 172 km N of Las Khorey, Somalia, at a depth of 10.0 km and coordinates 12.7208°, 48.2020°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
48.2020°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Las Khorey, Somalia?
The magnitude 4.6 earthquake that struck 172 km N of Las Khorey, Somalia on July 28, 2021 at 19:31 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 12.7208°, 48.2020°, which is 172 km N of Las Khorey, Somalia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000f1xn). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 28, 2021). M4.6 Earthquake 172 km N of Las Khorey, Somalia — July 28, 2021. Retrieved October 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000f1xn/