M4.6 Earthquake 81 km S of Calingasta, Argentina — October 13, 2025
2025-10-13 18:58:40 UTC (2025-10-13) · approx. 1:58 PM UTC-5 local
Felt by 13 people across nearby locations.
On October 13, 2025 at 18:58 UTC, a magnitude 4.6 intermediate depth earthquake struck 81 km S of Calingasta, Argentina, at a depth of 112.9 km and coordinates -32.0649°, -69.4448°. This earthquake was detected by 59 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 329, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 13 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-69.4448°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Calingasta, Argentina?
The magnitude 4.6 earthquake that struck 81 km S of Calingasta, Argentina on October 13, 2025 at 18:58 UTC had a depth of 112.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -32.0649°, -69.4448°, which is 81 km S of Calingasta, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us6000rgxx). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 13, 2025). M4.6 Earthquake 81 km S of Calingasta, Argentina — October 13, 2025. Retrieved May 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rgxx/