M3.9 Earthquake 24 km NW of Ancud, Chile — March 29, 2024
2024-03-29 19:39:20 UTC (2024-03-29) · approx. 2:39 PM UTC-5 local
On March 29, 2024 at 19:39 UTC, a magnitude 3.9 shallow crustal earthquake struck 24 km NW of Ancud, Chile, at a depth of 25.9 km and coordinates -41.7193°, -74.0387°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-74.0387°E
Technical Information
Common Questions
How strong was the magnitude 3.9 earthquake near Ancud, Chile?
The magnitude 3.9 earthquake that struck 24 km NW of Ancud, Chile on March 29, 2024 at 19:39 UTC had a depth of 25.9 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.9 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000m8t3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 29, 2024). M3.9 Earthquake 24 km NW of Ancud, Chile — March 29, 2024. Retrieved June 1, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m8t3/