M4.3 Earthquake 56 km SW of Borūjen, Iran — September 23, 2026
2026-09-23 00:44:14 UTC (2026-09-23) · approx. 3:44 AM UTC+3 local
On September 23, 2026 at 00:44 UTC, a magnitude 4.3 shallow crustal earthquake struck 56 km SW of Borūjen, Iran, at a depth of 10.0 km and coordinates 31.5442°, 50.9455°.
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
50.9455°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Borūjen, Iran?
The magnitude 4.3 earthquake that struck 56 km SW of Borūjen, Iran on September 23, 2026 at 00:44 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: us6000tx02). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 23, 2026). M4.3 Earthquake 56 km SW of Borūjen, Iran — September 23, 2026. Retrieved September 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tx02/