QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000h0kk
USGS usp000h0kk
18 Aug 2009, 14:17
113 km SW of Ishigaki, Japan
A magnitude 5.4 mwc earthquake at 5.7 km depth.
Published location
Where is 113 km SW of Ishigaki, Japan?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
23.509000, 123.515000
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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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Catalog fields and provenance
Event ID
usp000h0kk
Coordinates
23.509, 123.515
Network
us
Significance
449