M4.3 Earthquake 72 km W of Kuqa, China — September 3, 2025
2025-09-03 21:00:12 UTC (2025-09-03) · approx. 2:00 AM UTC+5 local
On September 3, 2025 at 21:00 UTC, a magnitude 4.3 shallow crustal earthquake struck 72 km W of Kuqa, China, at a depth of 10.0 km and coordinates 41.7707°, 82.0621°.
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
82.0621°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Kuqa, China?
The magnitude 4.3 earthquake that struck 72 km W of Kuqa, China on September 3, 2025 at 21:00 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.
Actions
Location
Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000qtm5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, September 3, 2025). M4.3 Earthquake 72 km W of Kuqa, China — September 3, 2025. Retrieved November 30, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qtm5/