QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem866771
USGS iscgem866771
13 Jun 1964, 09:23
178 km S of Port Blair, India
A magnitude 6 mw earthquake at 78 km depth.
Published location
Where is 178 km S of Port Blair, India?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
10.059000, 92.880000
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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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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
iscgem866771
Coordinates
10.059, 92.88
Network
iscgem
Significance
561