QQuakeFacts
USGS us6000gcwv

16 Dec 2021, 20:40

Mid-Indian Ridge

A magnitude 5.1 mb 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 Mid-Indian 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.

-40.607500, 78.391200

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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
us6000gcwv
Coordinates
-40.6075, 78.3912
Network
us
Significance
400