M4.9 Earthquake 27 km SSE of Xunchang, China — November 17, 2021
2021-11-17 15:36:21 UTC (2021-11-17) · approx. 10:36 PM UTC+7 local
On November 17, 2021 at 15:36 UTC, a magnitude 4.9 shallow crustal earthquake struck 27 km SSE of Xunchang, China, at a depth of 10.0 km and coordinates 28.2221°, 104.8030°.
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
104.8030°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Xunchang, China?
The magnitude 4.9 earthquake that struck 27 km SSE of Xunchang, China on November 17, 2021 at 15:36 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 28.2221°, 104.8030°, which is 27 km SSE of Xunchang, China.
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.
Actions
Location
Authoritative source: USGS event page (event ID: us7000fuvg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, November 17, 2021). M4.9 Earthquake 27 km SSE of Xunchang, China — November 17, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000fuvg/