M4.2 Earthquake 45 km NNE of Calama, Chile — January 27, 2024
2024-01-27 23:21:00 UTC (2024-01-27) · approx. 6:21 PM UTC-5 local
On January 27, 2024 at 23:21 UTC, a magnitude 4.2 intermediate depth earthquake struck 45 km NNE of Calama, Chile, at a depth of 118.1 km and coordinates -22.0823°, -68.7329°.
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
-68.7329°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Calama, Chile?
The magnitude 4.2 earthquake that struck 45 km NNE of Calama, Chile on January 27, 2024 at 23:21 UTC had a depth of 118.1 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 4.2 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: us7000luf8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, January 27, 2024). M4.2 Earthquake 45 km NNE of Calama, Chile — January 27, 2024. Retrieved March 30, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000luf8/