M4.7 Earthquake 92 km W of Dêqên, China — April 21, 2021
2021-04-21 13:28:26 UTC (2021-04-21) · approx. 7:28 PM UTC+6 local
On April 21, 2021 at 13:28 UTC, a magnitude 4.7 shallow crustal earthquake struck 92 km W of Dêqên, China, at a depth of 10.0 km and coordinates 30.0036°, 89.7629°.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
89.7629°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Dêqên, China?
The magnitude 4.7 earthquake that struck 92 km W of Dêqên, China on April 21, 2021 at 13:28 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 30.0036°, 89.7629°, which is 92 km W of Dêqên, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us6000e3fr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, April 21, 2021). M4.7 Earthquake 92 km W of Dêqên, China — April 21, 2021. Retrieved July 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000e3fr/