QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000298m
USGS us1000298m
15 May 2015, 11:21
166 km WSW of Haveluloto, Tonga
A magnitude 5.1 mb earthquake at 136.9 km depth.
Published location
Where is 166 km WSW 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.
-21.981000, -176.557600
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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
us1000298m
Coordinates
-21.981, -176.5576
Network
us
Significance
400