QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000gwg8
USGS usp000gwg8
22 Apr 2009, 16:18
157 km SSW of Hihifo, Tonga
A magnitude 5.1 mwc earthquake at 192.2 km depth.
Published location
Where is 157 km SSW of Hihifo, 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.
-17.225000, -174.454000
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
usp000gwg8
Coordinates
-17.225, -174.454
Network
us
Significance
400