QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgemsup891937
USGS iscgemsup891937
23 Aug 1953, 08:18
north of Ascension Island
A magnitude 6 mw earthquake at 15 km depth.
Published location
Where is north of Ascension Island?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-1.503000, -13.554000
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
iscgemsup891937
Coordinates
-1.503, -13.554
Network
iscgemsup
Significance
561