M4.5 Earthquake 13 km SSE of Yibin, China — August 10, 2026
2026-08-10 21:31:43 UTC (2026-08-10) · approx. 4:31 AM UTC+7 local
On August 10, 2026 at 21:31 UTC, a magnitude 4.5 shallow crustal earthquake struck 13 km SSE of Yibin, China, at a depth of 45.4 km and coordinates 28.6412°, 104.6812°. This earthquake was detected by 104 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
104.6812°E
Technical Information
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Common Questions
How strong was the magnitude 4.5 earthquake near Yibin, China?
The magnitude 4.5 earthquake that struck 13 km SSE of Yibin, China on August 10, 2026 at 21:31 UTC had a depth of 45.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 28.6412°, 104.6812°, which is 13 km SSE of Yibin, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
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Location
Authoritative source: USGS event page (event ID: us6000tjt8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 10, 2026). M4.5 Earthquake 13 km SSE of Yibin, China — August 10, 2026. Retrieved August 20, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tjt8/