QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us200027ps
USGS us200027ps

20 Apr 2015, 02:42

75 km WSW of Yonakuni, Japan

A magnitude 6.4 mww earthquake at 29 km depth.

Depth29 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated7 August 2022Latest timestamp stored in this record

Published location

Where is 75 km WSW 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.

24.202600, 122.315800

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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 6.4

66 km WNW of Yonakuni, Japan

M 6.4

65 km WSW of Yonakuni, Japan

M 6.4

31 km SSE of Yilan, Taiwan

M 6.4

44 km SSE of Lugu, Taiwan

M 6.4

33 km SE of Puli, Taiwan

M 6.4

29 km ESE of Puli, Taiwan

Catalog fields and provenance
Event ID
us200027ps
Coordinates
24.2026, 122.3158
Network
us
Significance
669