4.5

M4.5 Earthquake 82 km W of El Aguilar, ArgentinaJune 24, 2023

2023-06-24 22:12:11 UTC (2023-06-24) · approx. 6:12 PM UTC-4 local

MagnitudeM4.5(mb)
Time22:12 UTC6:12 PM UTC-4
Depth217.8 kmintermediate depth
Coordinates-23.090°, -66.475°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 24, 2023 at 22:12 UTC, a magnitude 4.5 intermediate depth earthquake struck 82 km W of El Aguilar, Argentina, at a depth of 217.8 km and coordinates -23.0901°, -66.4745°. This earthquake was detected by 51 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 -23.09°, -66.47°

Earthquake Details

Magnitude
4.5 mb
Depth
217.8 km
intermediate depth
Location
-23.0901°N
-66.4745°E

Technical Information

Event ID
us7000kawh
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
51
Azimuthal Gap
67.0°
Min Station Distance
1.576°
RMS Residual
0.75 sec
Last Updated
2023-08-26 20:54:08 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near El Aguilar, Argentina?

The magnitude 4.5 earthquake that struck 82 km W of El Aguilar, Argentina on June 24, 2023 at 22:12 UTC had a depth of 217.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -23.0901°, -66.4745°, which is 82 km W of El Aguilar, 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: us7000kawh). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, June 24, 2023). M4.5 Earthquake 82 km W of El Aguilar, ArgentinaJune 24, 2023. Retrieved August 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kawh/