4.7

M4.7 Earthquake 51 km SE of Londres, ArgentinaFebruary 28, 2024

2024-02-28 19:50:43 UTC (2024-02-28) · approx. 3:50 PM UTC-4 local

MagnitudeM4.7(mb)
Time19:50 UTC3:50 PM UTC-4
Depth152.3 kmintermediate depth
Coordinates-28.053°, -66.776°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 28, 2024 at 19:50 UTC, a magnitude 4.7 intermediate depth earthquake struck 51 km SE of Londres, Argentina, at a depth of 152.3 km and coordinates -28.0527°, -66.7763°. This earthquake was detected by 101 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -28.05°, -66.78°

Earthquake Details

Magnitude
4.7 mb
Depth
152.3 km
intermediate depth
Location
-28.0527°N
-66.7763°E

Technical Information

Event ID
us6000mfnw
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
101
Azimuthal Gap
36.0°
Min Station Distance
3.582°
RMS Residual
0.69 sec
Last Updated
2024-05-10 21:25:55 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Londres, Argentina?

The magnitude 4.7 earthquake that struck 51 km SE of Londres, Argentina on February 28, 2024 at 19:50 UTC had a depth of 152.3 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -28.0527°, -66.7763°, which is 51 km SE of Londres, Argentina.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000mfnw). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, February 28, 2024). M4.7 Earthquake 51 km SE of Londres, ArgentinaFebruary 28, 2024. Retrieved May 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mfnw/