M4.5 Earthquake 49 km SE of Xunchang, China — July 6, 2021
2021-07-06 20:19:29 UTC (2021-07-06) · approx. 3:19 AM UTC+7 local
On July 6, 2021 at 20:19 UTC, a magnitude 4.5 shallow crustal earthquake struck 49 km SE of Xunchang, China, at a depth of 10.0 km and coordinates 28.1099°, 105.0299°.
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.
Earthquake Details
105.0299°E
Technical Information
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Common Questions
How strong was the magnitude 4.5 earthquake near Xunchang, China?
The magnitude 4.5 earthquake that struck 49 km SE of Xunchang, China on July 6, 2021 at 20:19 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 28.1099°, 105.0299°, which is 49 km SE of Xunchang, 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: us7000ej6z). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 6, 2021). M4.5 Earthquake 49 km SE of Xunchang, China — July 6, 2021. Retrieved September 10, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000ej6z/