M4.7 Earthquake 10 km E of Calama, Chile — May 25, 2026
2026-05-25 22:03:22 UTC (2026-05-25) · approx. 5:03 PM UTC-5 local
On May 25, 2026 at 22:03 UTC, a magnitude 4.7 intermediate depth earthquake struck 10 km E of Calama, Chile, at a depth of 114.8 km and coordinates -22.4721°, -68.8235°. This earthquake was detected by 24 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Chile, a region characterized by the Peru-Chile Trench, where the Nazca Plate subducts beneath South America at 65-80 mm per year. The nearest mapped fault system is the Peru-Chile Trench. View all earthquakes in Chile.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
-68.8235°E
Technical Information
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Common Questions
How strong was the magnitude 4.7 earthquake near Calama, Chile?
The magnitude 4.7 earthquake that struck 10 km E of Calama, Chile on May 25, 2026 at 22:03 UTC had a depth of 114.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -22.4721°, -68.8235°, which is 10 km E of Calama, Chile. View all earthquakes in Chile.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Has Chile had earthquakes this big before?
The largest recorded earthquake in Chile was the M9.5 Great Chilean earthquake of May 22, 1960. Today's magnitude 4.7 event is significantly smaller than that historical record.
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Location
Authoritative source: USGS event page (event ID: us6000t04w). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 25, 2026). M4.7 Earthquake 10 km E of Calama, Chile — May 25, 2026. Retrieved June 1, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t04w/