M3.9 Earthquake 53 km NNW of Mejillones, Chile — July 19, 2024
2024-07-19 17:58:25 UTC (2024-07-19) · approx. 12:58 PM UTC-5 local
On July 19, 2024 at 17:58 UTC, a magnitude 3.9 shallow crustal earthquake struck 53 km NNW of Mejillones, Chile, at a depth of 16.6 km and coordinates -22.6514°, -70.6309°.
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
-70.6309°E
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Common Questions
How strong was the magnitude 3.9 earthquake near Mejillones, Chile?
The magnitude 3.9 earthquake that struck 53 km NNW of Mejillones, Chile on July 19, 2024 at 17:58 UTC had a depth of 16.6 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: us7000n0ag). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 19, 2024). M3.9 Earthquake 53 km NNW of Mejillones, Chile — July 19, 2024. Retrieved September 28, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000n0ag/