M4.2 Earthquake 233 km NNW of Nagqu, China — August 2, 2026
2026-08-02 03:15:37 UTC (3 days ago) · approx. 9:15 AM UTC+6 local
On August 2, 2026 at 03:15 UTC, a magnitude 4.2 shallow crustal earthquake struck 233 km NNW of Nagqu, China, at a depth of 10.0 km and coordinates 33.5255°, 91.4718°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
91.4718°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Nagqu, China?
The magnitude 4.2 earthquake that struck 233 km NNW of Nagqu, China on August 2, 2026 at 03:15 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 4.2 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000thk5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 2, 2026). M4.2 Earthquake 233 km NNW of Nagqu, China — August 2, 2026. Retrieved August 5, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000thk5/