M4.1 Earthquake 20 km SSE of San Pedro de Atacama, Chile — December 14, 2020
2020-12-14 20:08:02 UTC (2020-12-14) · approx. 3:08 PM UTC-5 local
On December 14, 2020 at 20:08 UTC, a magnitude 4.1 intermediate depth earthquake struck 20 km SSE of San Pedro de Atacama, Chile, at a depth of 129.6 km and coordinates -23.0863°, -68.1489°.
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
-68.1489°E
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Common Questions
How strong was the magnitude 4.1 earthquake near San Pedro de Atacama, Chile?
The magnitude 4.1 earthquake that struck 20 km SSE of San Pedro de Atacama, Chile on December 14, 2020 at 20:08 UTC had a depth of 129.6 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: us7000cr22). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 14, 2020). M4.1 Earthquake 20 km SSE of San Pedro de Atacama, Chile — December 14, 2020. Retrieved February 20, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000cr22/