M4.4 Earthquake 30 km NE of Calama, Chile — September 12, 2022
2022-09-12 23:38:23 UTC (2022-09-12) · approx. 6:38 PM UTC-5 local
On September 12, 2022 at 23:38 UTC, a magnitude 4.4 intermediate depth earthquake struck 30 km NE of Calama, Chile, at a depth of 108.9 km and coordinates -22.2962°, -68.6852°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-68.6852°E
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Common Questions
How strong was the magnitude 4.4 earthquake near Calama, Chile?
The magnitude 4.4 earthquake that struck 30 km NE of Calama, Chile on September 12, 2022 at 23:38 UTC had a depth of 108.9 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000i7hy). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 12, 2022). M4.4 Earthquake 30 km NE of Calama, Chile — September 12, 2022. Retrieved November 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i7hy/