M4.3 Earthquake near West Chile Rise — May 21, 2024
2024-05-21 18:49:13 UTC (2024-05-21) · approx. 1:49 PM UTC-5 local
On May 21, 2024 at 18:49 UTC, a magnitude 4.3 shallow crustal earthquake struck near West Chile Rise, at a depth of 10.0 km and coordinates -43.4251°, -82.0784°.
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.
Earthquake Details
-82.0784°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near West Chile Rise?
The magnitude 4.3 earthquake that struck near West Chile Rise on May 21, 2024 at 18:49 UTC had a depth of 10.0 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.
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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: us7000mnj1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, May 21, 2024). M4.3 Earthquake near West Chile Rise — May 21, 2024. Retrieved August 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mnj1/