M5.1 Earthquake 171 km E of Qamdo, China — April 26, 2025
2025-04-26 04:21:49 UTC (2025-04-26) · approx. 11:21 AM UTC+7 local
On April 26, 2025 at 04:21 UTC, a magnitude 5.1 shallow crustal earthquake struck 171 km E of Qamdo, China, at a depth of 10.0 km and coordinates 31.0900°, 98.9820°. This earthquake was detected by 97 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
98.9820°E
Technical Information
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Common Questions
How strong was the magnitude 5.1 earthquake near Qamdo, China?
The magnitude 5.1 earthquake that struck 171 km E of Qamdo, China on April 26, 2025 at 04:21 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 31.0900°, 98.9820°, which is 171 km E of Qamdo, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
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Location
Authoritative source: USGS event page (event ID: us7000pv6f). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 26, 2025). M5.1 Earthquake 171 km E of Qamdo, China — April 26, 2025. Retrieved July 11, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pv6f/