4.5

M4.5 Earthquake near northern Mid-Atlantic RidgeNovember 24, 2024

2024-11-24 15:28:06 UTC (2024-11-24) · approx. 12:28 PM UTC-3 local

MagnitudeM4.5(mb)
Time15:28 UTC12:28 PM UTC-3
Depth10.0 kmshallow crustal
Coordinates21.024°, -45.692°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 24, 2024 at 15:28 UTC, a magnitude 4.5 shallow crustal earthquake struck near northern Mid-Atlantic Ridge, at a depth of 10.0 km and coordinates 21.0242°, -45.6921°. This earthquake was detected by 19 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 21.02°, -45.69°

Earthquake Details

Magnitude
4.5 mb
Depth
10.0 km
shallow crustal
Location
21.0242°N
-45.6921°E

Technical Information

Event ID
us7000nxci
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
19
Azimuthal Gap
79.0°
Min Station Distance
15.300°
RMS Residual
0.90 sec
Last Updated
2025-01-30 17:00:37 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near northern Mid-Atlantic Ridge?

The magnitude 4.5 earthquake that struck near northern Mid-Atlantic Ridge on November 24, 2024 at 15:28 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 21.0242°, -45.6921°, which is near northern Mid-Atlantic Ridge.

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: us7000nxci). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, November 24, 2024). M4.5 Earthquake near northern Mid-Atlantic RidgeNovember 24, 2024. Retrieved January 30, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000nxci/