QQuakeFacts
USGS usp0000c07

15 Jul 1975, 00:27

Mid-Indian Ridge

A magnitude 6.5 ms earthquake at 33 km depth.

Depth33 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 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.

-40.446000, 78.443000

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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
usp0000c07
Coordinates
-40.446, 78.443
Network
us
Significance
650