QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000a7m5
USGS us2000a7m5
12 Aug 2017, 19:23
62 km ESE of Koshima, Japan
A magnitude 5.3 mww earthquake at 21.1 km depth.
Published location
Where is 62 km ESE of Koshima, 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.
30.001000, 131.129800
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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
us2000a7m5
Coordinates
30.001, 131.1298
Network
us
Significance
433