4.5

M4.5 Earthquake 89 km W of San Antonio de los Cobres, ArgentinaAugust 4, 2022

2022-08-04 17:23:12 UTC (2022-08-04) · approx. 1:23 PM UTC-4 local

MagnitudeM4.5(mwr)
Time17:23 UTC1:23 PM UTC-4
Depth183.8 kmintermediate depth
Coordinates-24.298°, -67.200°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 4, 2022 at 17:23 UTC, a magnitude 4.5 intermediate depth earthquake struck 89 km W of San Antonio de los Cobres, Argentina, at a depth of 183.8 km and coordinates -24.2977°, -67.1998°. This earthquake was detected by 24 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.

Map showing earthquake epicenter at -24.30°, -67.20°

Earthquake Details

Magnitude
4.5 mwr
Depth
183.8 km
intermediate depth
Location
-24.2977°N
-67.1998°E

Technical Information

Event ID
us6000i836
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
24
Azimuthal Gap
58.0°
Min Station Distance
1.613°
RMS Residual
0.95 sec
Last Updated
2022-10-12 14:50:37 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near San Antonio de los Cobres, Argentina?

The magnitude 4.5 earthquake that struck 89 km W of San Antonio de los Cobres, Argentina on August 4, 2022 at 17:23 UTC had a depth of 183.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -24.2977°, -67.1998°, which is 89 km W of San Antonio de los Cobres, 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: us6000i836). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, August 4, 2022). M4.5 Earthquake 89 km W of San Antonio de los Cobres, ArgentinaAugust 4, 2022. Retrieved October 12, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i836/