QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000g88v
USGS us6000g88v
1 Dec 2021, 16:58
1 km SSW of Tsukuba, Japan
A magnitude 5 mww earthquake at 51.7 km depth.
Published location
Where is 1 km SSW of Tsukuba, 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.
36.187500, 140.091100
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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
us6000g88v
Coordinates
36.1875, 140.0911
Network
us
Significance
496