M4.0 Earthquake 146 km SE of Kuqa, China — March 25, 2025
2025-03-25 21:50:18 UTC (2025-03-25) · approx. 3:50 AM UTC+6 local
On March 25, 2025 at 21:50 UTC, a magnitude 4.0 shallow crustal earthquake struck 146 km SE of Kuqa, China, at a depth of 10.0 km and coordinates 40.8004°, 84.1881°.
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
84.1881°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Kuqa, China?
The magnitude 4.0 earthquake that struck 146 km SE of Kuqa, China on March 25, 2025 at 21:50 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 4.0 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: us7000pmld). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 25, 2025). M4.0 Earthquake 146 km SE of Kuqa, China — March 25, 2025. Retrieved May 29, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pmld/