M4.3 Earthquake 55 km N of Calama, Chile — November 15, 2021
2021-11-15 22:31:01 UTC (2021-11-15) · approx. 5:31 PM UTC-5 local
On November 15, 2021 at 22:31 UTC, a magnitude 4.3 intermediate depth earthquake struck 55 km N of Calama, Chile, at a depth of 118.9 km and coordinates -21.9625°, -68.8394°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-68.8394°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Calama, Chile?
The magnitude 4.3 earthquake that struck 55 km N of Calama, Chile on November 15, 2021 at 22:31 UTC had a depth of 118.9 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000fufb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, November 15, 2021). M4.3 Earthquake 55 km N of Calama, Chile — November 15, 2021. Retrieved January 22, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fufb/