QQuakeFacts
USGS usp000f74q

21 Mar 2007, 23:07

northern Mid-Atlantic Ridge

A magnitude 5.4 mwc earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

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.

15.185000, -45.617000

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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
usp000f74q
Coordinates
15.185, -45.617
Network
us
Significance
449