QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000g4th
USGS us1000g4th
7 Aug 2018, 16:12
242 km ESE of ?funato, Japan
A magnitude 5.5 mww earthquake at 14.5 km depth.
Published location
Where is 242 km ESE of ?funato, 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.
37.885700, 144.054900
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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
us1000g4th
Coordinates
37.8857, 144.0549
Network
us
Significance
469