M4.2 Earthquake 16 km N of Masjed Soleymān, Iran — August 9, 2023
2023-08-09 21:57:33 UTC (2023-08-09) · approx. 12:57 AM UTC+3 local
On August 9, 2023 at 21:57 UTC, a magnitude 4.2 shallow crustal earthquake struck 16 km N of Masjed Soleymān, Iran, at a depth of 10.0 km and coordinates 32.0874°, 49.3232°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
49.3232°E
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Common Questions
How strong was the magnitude 4.2 earthquake near Masjed Soleymān, Iran?
The magnitude 4.2 earthquake that struck 16 km N of Masjed Soleymān, Iran on August 9, 2023 at 21:57 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000kyyh). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 9, 2023). M4.2 Earthquake 16 km N of Masjed Soleymān, Iran — August 9, 2023. Retrieved October 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kyyh/