M4.5 Earthquake 110 km S of Kuqa, China — July 23, 2021
2021-07-23 19:44:07 UTC (2021-07-23) · approx. 1:44 AM UTC+6 local
Felt by 1 person across nearby locations.
On July 23, 2021 at 19:44 UTC, a magnitude 4.5 shallow crustal earthquake struck 110 km S of Kuqa, China, at a depth of 10.0 km and coordinates 40.7197°, 82.9628°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
82.9628°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Kuqa, China?
The magnitude 4.5 earthquake that struck 110 km S of Kuqa, China on July 23, 2021 at 19:44 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 40.7197°, 82.9628°, which is 110 km S of Kuqa, 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: us6000eyf4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 23, 2021). M4.5 Earthquake 110 km S of Kuqa, China — July 23, 2021. Retrieved October 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000eyf4/