M4.3 Earthquake 48 km WNW of Abra Pampa, Argentina — October 22, 2023
2023-10-22 22:22:19 UTC (2023-10-22) · approx. 6:22 PM UTC-4 local
On October 22, 2023 at 22:22 UTC, a magnitude 4.3 intermediate depth earthquake struck 48 km WNW of Abra Pampa, Argentina, at a depth of 259.5 km and coordinates -22.5131°, -66.1162°.
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
-66.1162°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Abra Pampa, Argentina?
The magnitude 4.3 earthquake that struck 48 km WNW of Abra Pampa, Argentina on October 22, 2023 at 22:22 UTC had a depth of 259.5 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: us6000lhd0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 22, 2023). M4.3 Earthquake 48 km WNW of Abra Pampa, Argentina — October 22, 2023. Retrieved January 4, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lhd0/