QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem910538
USGS iscgem910538
13 Jun 1925, 21:22
southern Mid-Atlantic Ridge
A magnitude 6.1 mw earthquake at 10 km depth.
Published location
Where is southern Mid-Atlantic Ridge?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-33.221000, -20.513000
Open the interactive map ↗Map data © OpenStreetMap contributors
What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
Need a current safety answer?
Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
Continue exploring
Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem910538
Coordinates
-33.221, -20.513
Network
iscgem
Significance
567