QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000exy4
USGS us1000exy4
21 Jun 2018, 20:33
141 km S of ‘Ohonua, Tonga
A magnitude 5.6 mww earthquake at 10 km depth.
Published location
Where is 141 km S of ‘Ohonua, 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.
-22.606000, -174.897300
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
us1000exy4
Coordinates
-22.606, -174.8973
Network
us
Significance
482