QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000dfb8
USGS usp000dfb8
1 Feb 2005, 10:28
115 km NW of Nuku‘alofa, Tonga
A magnitude 5.5 mwc earthquake at 172.5 km depth.
Published location
Where is 115 km NW of Nuku‘alofa, 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.
-20.398000, -175.982000
Open the interactive map ↗Map data © OpenStreetMap contributors
What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
Need a current safety answer?
Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
Continue exploring
Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp000dfb8
Coordinates
-20.398, -175.982
Network
us
Significance
465