M4.9 Earthquake near western Xizang — February 4, 2026
2026-02-04 06:26:07 UTC (2026-02-04) · approx. 12:26 PM UTC+6 local
On February 4, 2026 at 06:26 UTC, a magnitude 4.9 shallow crustal earthquake struck near western Xizang, at a depth of 10.0 km and coordinates 33.0096°, 83.2744°. This earthquake was detected by 62 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
83.2744°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near western Xizang?
The magnitude 4.9 earthquake that struck near western Xizang on February 4, 2026 at 06:26 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 33.0096°, 83.2744°, which is near western Xizang.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us6000s6by). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, February 4, 2026). M4.9 Earthquake near western Xizang — February 4, 2026. Retrieved May 18, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000s6by/