QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem773264
USGS iscgem773264
8 May 1972, 17:15
182 km W of Pangai, Tonga
A magnitude 6.1 mw earthquake at 31.4 km depth.
Published location
Where is 182 km W of Pangai, Tonga?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-19.525000, -176.064000
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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
iscgem773264
Coordinates
-19.525, -176.064
Network
iscgem
Significance
565