QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us100031xw
USGS us100031xw

13 Aug 2015, 15:08

75 km SW of Yonakuni, Japan

A magnitude 5.6 mww earthquake at 17.3 km depth.

Depth17.3 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated31 July 2022Latest timestamp stored in this record

Published location

Where is 75 km SW of Yonakuni, 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.

23.968900, 122.489700

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

M 5.6

61 km W of Yonakuni, Japan

M 5.6

99 km SSE of Hualien City, Taiwan

M 5.6

1 km SSW of Lugu, Taiwan

M 5.6

17 km SSE of Hualien City, Taiwan

M 5.6

Taiwan

M 5.6

92 km ESE of Yujing, Taiwan

Catalog fields and provenance
Event ID
us100031xw
Coordinates
23.9689, 122.4897
Network
us
Significance
488