QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000aq5r
USGS us1000aq5r
11 Oct 2017, 14:15
199 km E of Neiafu, Tonga
A magnitude 5 mb earthquake at 10 km depth.
Published location
Where is 199 km E 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.
-18.344400, -172.121400
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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
us1000aq5r
Coordinates
-18.3444, -172.1214
Network
us
Significance
385