M4.6 Earthquake 47 km SE of Xunchang, China — August 11, 2020
2020-08-11 05:41:49 UTC (2020-08-11) · approx. 12:41 PM UTC+7 local
Maximum shaking intensity MMI 5.3 (strong).
On August 11, 2020 at 05:41 UTC, a magnitude 4.6 shallow crustal earthquake struck 47 km SE of Xunchang, China, at a depth of 10.0 km and coordinates 28.1847°, 105.0933°.
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.
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Earthquake Details
105.0933°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake near Xunchang, China?
The magnitude 4.6 earthquake that struck 47 km SE of Xunchang, China on August 11, 2020 at 05:41 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 28.1847°, 105.0933°, which is 47 km SE of Xunchang, 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: us6000bcha). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, August 11, 2020). M4.6 Earthquake 47 km SE of Xunchang, China — August 11, 2020. Retrieved March 10, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000bcha/