M4.3 Earthquake near Off the coast of Atacama, Chile — February 23, 2023
2023-02-23 23:34:36 UTC (2023-02-23) · approx. 6:34 PM UTC-5 local
On February 23, 2023 at 23:34 UTC, a magnitude 4.3 shallow crustal earthquake struck near Off the coast of Atacama, Chile, at a depth of 21.6 km and coordinates -26.7049°, -71.3113°.
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
-71.3113°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Off the coast of Atacama, Chile?
The magnitude 4.3 earthquake that struck near Off the coast of Atacama, Chile on February 23, 2023 at 23:34 UTC had a depth of 21.6 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.
Actions
Location
Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000jr52). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, February 23, 2023). M4.3 Earthquake near Off the coast of Atacama, Chile — February 23, 2023. Retrieved April 29, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jr52/