M4.5 Earthquake 82 km WNW of Kuqa, China — September 7, 2025
2025-09-07 21:56:07 UTC (2025-09-07) · approx. 2:56 AM UTC+5 local
On September 7, 2025 at 21:56 UTC, a magnitude 4.5 shallow crustal earthquake struck 82 km WNW of Kuqa, China, at a depth of 10.0 km and coordinates 41.9173°, 81.9796°. This earthquake was detected by 59 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
81.9796°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Kuqa, China?
The magnitude 4.5 earthquake that struck 82 km WNW of Kuqa, China on September 7, 2025 at 21:56 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 41.9173°, 81.9796°, which is 82 km WNW of Kuqa, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us7000qum6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, September 7, 2025). M4.5 Earthquake 82 km WNW of Kuqa, China — September 7, 2025. Retrieved November 30, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qum6/