M4.2 Earthquake 67 km W of Illapel, Chile — November 13, 2023
2023-11-13 17:48:18 UTC (2023-11-13) · approx. 12:48 PM UTC-5 local
On November 13, 2023 at 17:48 UTC, a magnitude 4.2 shallow crustal earthquake struck 67 km W of Illapel, Chile, at a depth of 31.0 km and coordinates -31.6119°, -71.8760°.
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
-71.8760°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Illapel, Chile?
The magnitude 4.2 earthquake that struck 67 km W of Illapel, Chile on November 13, 2023 at 17:48 UTC had a depth of 31.0 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: us7000laq3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 13, 2023). M4.2 Earthquake 67 km W of Illapel, Chile — November 13, 2023. Retrieved January 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000laq3/