M4.9 Earthquake 35 km SSE of Kangding, China — January 25, 2023
2023-01-25 23:21:33 UTC (2023-01-25) · approx. 6:21 AM UTC+7 local
On January 25, 2023 at 23:21 UTC, a magnitude 4.9 shallow crustal earthquake struck 35 km SSE of Kangding, China, at a depth of 10.0 km and coordinates 29.6904°, 102.0311°. This earthquake was detected by 135 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
102.0311°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Kangding, China?
The magnitude 4.9 earthquake that struck 35 km SSE of Kangding, China on January 25, 2023 at 23:21 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 29.6904°, 102.0311°, which is 35 km SSE 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.
Actions
Location
Authoritative source: USGS event page (event ID: us6000jjai). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 25, 2023). M4.9 Earthquake 35 km SSE of Kangding, China — January 25, 2023. Retrieved April 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jjai/