M4.9 Earthquake 27 km WNW of Linqiong, China — October 12, 2025
2025-10-12 07:21:43 UTC (2025-10-12) · approx. 2:21 PM UTC+7 local
On October 12, 2025 at 07:21 UTC, a magnitude 4.9 shallow crustal earthquake struck 27 km WNW of Linqiong, China, at a depth of 10.0 km and coordinates 30.5334°, 103.2064°. This earthquake was detected by 64 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
103.2064°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Linqiong, China?
The magnitude 4.9 earthquake that struck 27 km WNW of Linqiong, China on October 12, 2025 at 07:21 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 30.5334°, 103.2064°, which is 27 km WNW of Linqiong, 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.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us6000rgpt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 12, 2025). M4.9 Earthquake 27 km WNW of Linqiong, China — October 12, 2025. Retrieved May 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rgpt/