QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000bsmq
USGS usp000bsmq
14 Mar 2003, 12:54
186 km NW of Neiafu, Tonga
A magnitude 6.4 mwb earthquake at 274.9 km depth.
Published location
Where is 186 km NW of Neiafu, 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.
-17.416000, -175.183000
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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
usp000bsmq
Coordinates
-17.416, -175.183
Network
us
Significance
630