QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000isp1
USGS us2000isp1
12 Dec 2018, 03:24
48 km SE of Pangai, Tonga
A magnitude 5.1 mb earthquake at 35 km depth.
Published location
Where is 48 km SE of Pangai, 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.
-20.176200, -174.088300
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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
us2000isp1
Coordinates
-20.1762, -174.0883
Network
us
Significance
400