M4.0 Earthquake 78 km SSW of Fīrūzābād, Iran — October 28, 2026
2026-10-28 00:51:28 UTC (1 hour ago) · approx. 3:51 AM UTC+3 local
On October 28, 2026 at 00:51 UTC, a magnitude 4.0 shallow crustal earthquake struck 78 km SSW of Fīrūzābād, Iran, at a depth of 10.0 km and coordinates 28.1699°, 52.3309°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
52.3309°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Fīrūzābād, Iran?
The magnitude 4.0 earthquake that struck 78 km SSW of Fīrūzābād, Iran on October 28, 2026 at 00:51 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Location
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000ttl5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 28, 2026). M4.0 Earthquake 78 km SSW of Fīrūzābād, Iran — October 28, 2026. Retrieved October 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000ttl5/