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USGS iscgem900721

21 Mar 1941, 08:58

central Mid-Atlantic Ridge

A magnitude 6.1 mw earthquake at 15 km depth.

Depth15 kmPublished hypocentral depth

Tsunami flagNot flaggedUSGS catalog flag, not a current warning

Updated26 April 2022Latest timestamp stored in this record

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.

6.916000, -34.624000

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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.

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Nearby events with a similar magnitude

central Mid-Atlantic Ridge

central Mid-Atlantic Ridge

central Mid-Atlantic Ridge

central Mid-Atlantic Ridge

central Mid-Atlantic Ridge

central Mid-Atlantic Ridge

Catalog fields and provenance

Event ID

iscgem900721

Coordinates

6.916, -34.624

Network

iscgem

Significance

578