QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000e8th
USGS us1000e8th
20 May 2018, 02:14
118 km ENE of ‘Ohonua, Tonga
A magnitude 5 mb earthquake at 10 km depth.
Published location
Where is 118 km ENE 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.
-20.975100, -173.877900
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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
us1000e8th
Coordinates
-20.9751, -173.8779
Network
us
Significance
385