QQuakeFacts
USGS us6000a3az

31 May 2020, 22:02

9 km ENE of Ishioka, Japan

A magnitude 5.2 mww earthquake at 98.6 km depth.

Depth98.6 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 9 km ENE of Ishioka, 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.

36.203400, 140.364800

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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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Catalog fields and provenance
Event ID
us6000a3az
Coordinates
36.2034, 140.3648
Network
us
Significance
496