QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hr9f
USGS usp000hr9f
21 Dec 2010, 17:40
Bonin Islands, Japan region
A magnitude 5.5 mb earthquake at 10 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.
27.080000, 143.215000
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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
usp000hr9f
Coordinates
27.08, 143.215
Network
us
Significance
465