M4.7 Earthquake 81 km ENE of Mazha, China — October 28, 2026
2026-10-28 15:40:55 UTC (1 hour ago) · approx. 9:40 PM UTC+6 local
On October 28, 2026 at 15:40 UTC, a magnitude 4.7 shallow crustal earthquake struck 81 km ENE of Mazha, China, at a depth of 10.0 km and coordinates 44.2394°, 82.8042°. This earthquake was detected by 69 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
82.8042°E
Technical Information
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Common Questions
How strong was the magnitude 4.7 earthquake near Mazha, China?
The magnitude 4.7 earthquake that struck 81 km ENE of Mazha, China on October 28, 2026 at 15:40 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 44.2394°, 82.8042°, which is 81 km ENE of Mazha, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
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Location
Authoritative source: USGS event page (event ID: us7000ttpk). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 28, 2026). M4.7 Earthquake 81 km ENE of Mazha, China — October 28, 2026. Retrieved October 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000ttpk/