QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem911798
USGS iscgem911798
9 Jan 1922, 05:09
northern Mid-Atlantic Ridge
A magnitude 6.9 mw earthquake at 10 km depth.
Published location
Where is northern 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.
23.811000, -45.854000
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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
iscgem911798
Coordinates
23.811, -45.854
Network
iscgem
Significance
722