M4.0 Earthquake 68 km ENE of La Tirana, Chile — October 13, 2023
2023-10-13 20:02:10 UTC (2023-10-13) · approx. 3:02 PM UTC-5 local
On October 13, 2023 at 20:02 UTC, a magnitude 4.0 intermediate depth earthquake struck 68 km ENE of La Tirana, Chile, at a depth of 105.1 km and coordinates -20.0475°, -69.0806°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-69.0806°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near La Tirana, Chile?
The magnitude 4.0 earthquake that struck 68 km ENE of La Tirana, Chile on October 13, 2023 at 20:02 UTC had a depth of 105.1 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000lfev). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 13, 2023). M4.0 Earthquake 68 km ENE of La Tirana, Chile — October 13, 2023. Retrieved December 16, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lfev/