M4.0 Earthquake 104 km ENE of Khorugh, Tajikistan — September 28, 2023
2023-09-28 19:22:06 UTC (2023-09-28) · approx. 12:22 AM UTC+5 local
On September 28, 2023 at 19:22 UTC, a magnitude 4.0 intermediate depth earthquake struck 104 km ENE of Khorugh, Tajikistan, at a depth of 126.7 km and coordinates 37.9959°, 72.5538°.
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
72.5538°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Khorugh, Tajikistan?
The magnitude 4.0 earthquake that struck 104 km ENE of Khorugh, Tajikistan on September 28, 2023 at 19:22 UTC had a depth of 126.7 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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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000lbhc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, September 28, 2023). M4.0 Earthquake 104 km ENE of Khorugh, Tajikistan — September 28, 2023. Retrieved December 9, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lbhc/