M4.6 Earthquake 88 km W of Aykol, China — April 1, 2021
2021-04-01 19:20:06 UTC (2021-04-01) · approx. 12:20 AM UTC+5 local
On April 1, 2021 at 19:20 UTC, a magnitude 4.6 shallow crustal earthquake struck 88 km W of Aykol, China, at a depth of 11.8 km and coordinates 40.9088°, 79.0898°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
79.0898°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake near Aykol, China?
The magnitude 4.6 earthquake that struck 88 km W of Aykol, China on April 1, 2021 at 19:20 UTC had a depth of 11.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 40.9088°, 79.0898°, which is 88 km W of Aykol, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
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Location
Authoritative source: USGS event page (event ID: us6000dycm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, April 1, 2021). M4.6 Earthquake 88 km W of Aykol, China — April 1, 2021. Retrieved June 8, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dycm/