M4.5 Earthquake 114 km W of Abra Pampa, Argentina — August 11, 2023
2023-08-11 15:36:23 UTC (2023-08-11) · approx. 11:36 AM UTC-4 local
On August 11, 2023 at 15:36 UTC, a magnitude 4.5 intermediate depth earthquake struck 114 km W of Abra Pampa, Argentina, at a depth of 198.9 km and coordinates -22.7806°, -66.8101°. This earthquake was detected by 30 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.8101°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Abra Pampa, Argentina?
The magnitude 4.5 earthquake that struck 114 km W of Abra Pampa, Argentina on August 11, 2023 at 15:36 UTC had a depth of 198.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -22.7806°, -66.8101°, which is 114 km W of Abra Pampa, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000kz96). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 11, 2023). M4.5 Earthquake 114 km W of Abra Pampa, Argentina — August 11, 2023. Retrieved October 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kz96/