M4.3 Earthquake 91 km W of Ollagüe, Chile — April 27, 2026
2026-04-27 11:37:40 UTC (2 hours ago) · approx. 6:37 AM UTC-5 local
On April 27, 2026 at 11:37 UTC, a magnitude 4.3 intermediate depth earthquake struck 91 km W of Ollagüe, Chile, at a depth of 111.3 km and coordinates -21.1229°, -69.1274°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-69.1274°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Ollagüe, Chile?
The magnitude 4.3 earthquake that struck 91 km W of Ollagüe, Chile on April 27, 2026 at 11:37 UTC had a depth of 111.3 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.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
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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: us6000st4g). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, April 27, 2026). M4.3 Earthquake 91 km W of Ollagüe, Chile — April 27, 2026. Retrieved April 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000st4g/