M5.2 Earthquake near northern Mid-Atlantic Ridge — May 31, 2021
2021-05-31 14:38:56 UTC (2021-05-31) · approx. 11:38 AM UTC-3 local
On May 31, 2021 at 14:38 UTC, a magnitude 5.2 shallow crustal earthquake struck near northern Mid-Atlantic Ridge, at a depth of 10.0 km and coordinates 28.6802°, -43.5863°.
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-43.5863°E
Technical Information
Common Questions
How strong was the magnitude 5.2 earthquake near northern Mid-Atlantic Ridge?
The magnitude 5.2 earthquake that struck near northern Mid-Atlantic Ridge on May 31, 2021 at 14:38 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 28.6802°, -43.5863°, which is near northern Mid-Atlantic Ridge.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000egbp). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, May 31, 2021). M5.2 Earthquake near northern Mid-Atlantic Ridge — May 31, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000egbp/