M4.4 Earthquake 68 km N of Torbat-e Jām, Iran — May 21, 2023
2023-05-21 21:45:43 UTC (2023-05-21) · approx. 1:45 AM UTC+4 local
On May 21, 2023 at 21:45 UTC, a magnitude 4.4 shallow crustal earthquake struck 68 km N of Torbat-e Jām, Iran, at a depth of 10.0 km and coordinates 35.8576°, 60.5366°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 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 6 citizen responses 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
60.5366°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake near Torbat-e Jām, Iran?
The magnitude 4.4 earthquake that struck 68 km N of Torbat-e Jām, Iran on May 21, 2023 at 21:45 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Location
Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000kdrl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, May 21, 2023). M4.4 Earthquake 68 km N of Torbat-e Jām, Iran — May 21, 2023. Retrieved July 29, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kdrl/