M4.8 Earthquake 76 km S of Calingasta, Argentina — January 7, 2023
2023-01-07 06:23:40 UTC (2023-01-07) · approx. 1:23 AM UTC-5 local
Felt by 1 person across nearby locations.
On January 7, 2023 at 06:23 UTC, a magnitude 4.8 intermediate depth earthquake struck 76 km S of Calingasta, Argentina, at a depth of 106.7 km and coordinates -32.0193°, -69.4816°. This earthquake was detected by 132 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 355, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — 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 1 citizen response 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
-69.4816°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.8 earthquake near Calingasta, Argentina?
The magnitude 4.8 earthquake that struck 76 km S of Calingasta, Argentina on January 7, 2023 at 06:23 UTC had a depth of 106.7 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -32.0193°, -69.4816°, which is 76 km S of Calingasta, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000j2r8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 7, 2023). M4.8 Earthquake 76 km S of Calingasta, Argentina — January 7, 2023. Retrieved March 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j2r8/