M4.3 Earthquake 14 km WNW of Yasuj, Iran — August 31, 2026
2026-08-31 15:21:59 UTC (2026-08-31) · approx. 6:21 PM UTC+3 local
On August 31, 2026 at 15:21 UTC, a magnitude 4.3 shallow crustal earthquake struck 14 km WNW of Yasuj, Iran, at a depth of 10.0 km and coordinates 30.7140°, 51.4419°.
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
51.4419°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Yasuj, Iran?
The magnitude 4.3 earthquake that struck 14 km WNW of Yasuj, Iran on August 31, 2026 at 15:21 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: us7000td4r). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 31, 2026). M4.3 Earthquake 14 km WNW of Yasuj, Iran — August 31, 2026. Retrieved September 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000td4r/