4.5

M4.5 Earthquake 21 km NW of Albardón, ArgentinaSeptember 20, 2024

2024-09-20 23:11:44 UTC (2024-09-20) · approx. 6:11 PM UTC-5 local

MagnitudeM4.5(mb)
Time23:11 UTC6:11 PM UTC-5
Depth106.9 kmintermediate depth
Coordinates-31.289°, -68.675°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 20, 2024 at 23:11 UTC, a magnitude 4.5 intermediate depth earthquake struck 21 km NW of Albardón, Argentina, at a depth of 106.9 km and coordinates -31.2886°, -68.6748°. This earthquake was detected by 93 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 -31.29°, -68.67°

Earthquake Details

Magnitude
4.5 mb
Depth
106.9 km
intermediate depth
Location
-31.2886°N
-68.6748°E

Technical Information

Event ID
us6000nteb
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
93
Azimuthal Gap
42.0°
Min Station Distance
0.256°
RMS Residual
0.55 sec
Last Updated
2024-11-23 23:26:29 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Albardón, Argentina?

The magnitude 4.5 earthquake that struck 21 km NW of Albardón, Argentina on September 20, 2024 at 23:11 UTC had a depth of 106.9 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -31.2886°, -68.6748°, which is 21 km NW of Albardón, 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: us6000nteb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, September 20, 2024). M4.5 Earthquake 21 km NW of Albardón, ArgentinaSeptember 20, 2024. Retrieved November 23, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nteb/