M4.2 Earthquake 24 km WNW of Dali, China — August 13, 2022
2022-08-13 20:01:09 UTC (2022-08-13) · approx. 3:01 AM UTC+7 local
On August 13, 2022 at 20:01 UTC, a magnitude 4.2 shallow crustal earthquake struck 24 km WNW of Dali, China, at a depth of 10.0 km and coordinates 25.6628°, 99.9823°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
99.9823°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Dali, China?
The magnitude 4.2 earthquake that struck 24 km WNW of Dali, China on August 13, 2022 at 20:01 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000ial9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, August 13, 2022). M4.2 Earthquake 24 km WNW of Dali, China — August 13, 2022. Retrieved October 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000ial9/