QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us7000dhxm
USGS us7000dhxm
10 Mar 2021, 20:12
273 km WNW of Haveluloto, Tonga
A magnitude 5.9 mww earthquake at 488 km depth.
Published location
Where is 273 km WNW of Haveluloto, 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.
-20.156000, -177.615800
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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
us7000dhxm
Coordinates
-20.156, -177.6158
Network
us
Significance
536