M4.1 Earthquake near Near the coast of southern Peru — May 18, 2021
2021-05-18 23:16:16 UTC (2021-05-18) · approx. 6:16 PM UTC-5 local
On May 18, 2021 at 23:16 UTC, a magnitude 4.1 shallow crustal earthquake struck near Near the coast of southern Peru, at a depth of 62.6 km and coordinates -15.1558°, -74.8353°.
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
-74.8353°E
Technical Information
Common Questions
How strong was the magnitude 4.1 earthquake near Near the coast of southern Peru?
The magnitude 4.1 earthquake that struck near Near the coast of southern Peru on May 18, 2021 at 23:16 UTC had a depth of 62.6 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: us7000e5ug). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, May 18, 2021). M4.1 Earthquake near Near the coast of southern Peru — May 18, 2021. Retrieved July 24, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000e5ug/