M4.9 Earthquake 42 km S of Kangding, China — May 11, 2023
2023-05-11 18:34:06 UTC (2023-05-11) · approx. 1:34 AM UTC+7 local
On May 11, 2023 at 18:34 UTC, a magnitude 4.9 shallow crustal earthquake struck 42 km S of Kangding, China, at a depth of 10.0 km and coordinates 29.6196°, 102.0015°. This earthquake was detected by 170 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
102.0015°E
Technical Information
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Common Questions
How strong was the magnitude 4.9 earthquake near Kangding, China?
The magnitude 4.9 earthquake that struck 42 km S of Kangding, China on May 11, 2023 at 18:34 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 29.6196°, 102.0015°, which is 42 km S of Kangding, 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.
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Location
Authoritative source: USGS event page (event ID: us6000kb71). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, May 11, 2023). M4.9 Earthquake 42 km S of Kangding, China — May 11, 2023. Retrieved July 22, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kb71/