QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem907184
USGS iscgem907184
31 Dec 1931, 00:23
199 km N of Port Mathurin, Mauritius
A magnitude 6.2 mw earthquake at 10 km depth.
Published location
Where is 199 km N of Port Mathurin, Mauritius?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-17.919000, 63.783000
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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
iscgem907184
Coordinates
-17.919, 63.783
Network
iscgem
Significance
584