4.4

M4.4 Earthquake 73 km WSW of San Antonio de los Cobres, ArgentinaNovember 22, 2023

2023-11-22 21:33:54 UTC (2023-11-22) · approx. 5:33 PM UTC-4 local

MagnitudeM4.4(mb)
Time21:33 UTC5:33 PM UTC-4
Depth164.0 kmintermediate depth
Coordinates-24.357°, -67.030°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 22, 2023 at 21:33 UTC, a magnitude 4.4 intermediate depth earthquake struck 73 km WSW of San Antonio de los Cobres, Argentina, at a depth of 164.0 km and coordinates -24.3570°, -67.0299°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -24.36°, -67.03°

Earthquake Details

Magnitude
4.4 mb
Depth
164.0 km
intermediate depth
Location
-24.3570°N
-67.0299°E

Technical Information

Event ID
us6000lq5y
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
29
Azimuthal Gap
70.0°
Min Station Distance
1.751°
RMS Residual
0.75 sec
Last Updated
2024-02-01 15:13:42 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near San Antonio de los Cobres, Argentina?

The magnitude 4.4 earthquake that struck 73 km WSW of San Antonio de los Cobres, Argentina on November 22, 2023 at 21:33 UTC had a depth of 164.0 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000lq5y). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, November 22, 2023). M4.4 Earthquake 73 km WSW of San Antonio de los Cobres, ArgentinaNovember 22, 2023. Retrieved February 1, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lq5y/