QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem890586
USGS iscgem890586
1 May 1954, 00:04
central Mid-Atlantic Ridge
A magnitude 6.5 mw earthquake at 15 km depth.
Published location
Where is central 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.
-0.242000, -18.669000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Catalog fields and provenance
Event ID
iscgem890586
Coordinates
-0.242, -18.669
Network
iscgem
Significance
640