M4.1 Earthquake 17 km S of Vilca, Peru — September 7, 2022
2022-09-07 21:57:34 UTC (2022-09-07) · approx. 4:57 PM UTC-5 local
On September 7, 2022 at 21:57 UTC, a magnitude 4.1 intermediate depth earthquake struck 17 km S of Vilca, Peru, at a depth of 89.9 km and coordinates -12.6395°, -75.1694°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-75.1694°E
Technical Information
Common Questions
How strong was the magnitude 4.1 earthquake near Vilca, Peru?
The magnitude 4.1 earthquake that struck 17 km S of Vilca, Peru on September 7, 2022 at 21:57 UTC had a depth of 89.9 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000i81u). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 7, 2022). M4.1 Earthquake 17 km S of Vilca, Peru — September 7, 2022. Retrieved November 15, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i81u/