M4.1 Earthquake 74 km E of Kalāleh, Iran — November 20, 2025
2025-11-20 20:56:04 UTC (2025-11-20) · approx. 12:56 AM UTC+4 local
On November 20, 2025 at 20:56 UTC, a magnitude 4.1 shallow crustal earthquake struck 74 km E of Kalāleh, Iran, at a depth of 10.0 km and coordinates 37.3316°, 56.3277°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
56.3277°E
Technical Information
Common Questions
How strong was the magnitude 4.1 earthquake near Kalāleh, Iran?
The magnitude 4.1 earthquake that struck 74 km E of Kalāleh, Iran on November 20, 2025 at 20:56 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 4.1 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Actions
Location
Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000rtfm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, November 20, 2025). M4.1 Earthquake 74 km E of Kalāleh, Iran — November 20, 2025. Retrieved May 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rtfm/