QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us20002ki3
USGS us20002ki3
30 May 2015, 12:23
Bonin Islands, Japan region
A magnitude 7.8 mww earthquake at 664 km depth.
Published location
Where is Bonin Islands, Japan region?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
27.838600, 140.493100
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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
us20002ki3
Coordinates
27.8386, 140.4931
Network
us
Significance
1152