QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem881490
USGS iscgem881490

27 Feb 1959, 20:56

102 km NNE of Nago, Japan

A magnitude 6 mw earthquake at 50 km depth.

Depth50 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated26 April 2022Latest timestamp stored in this record

Published location

Where is 102 km NNE of Nago, 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.

27.393000, 128.536000

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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 6.04

122 km SE of Isen, Japan

M 6.02

49 km SE of Nago, Japan

M 6.01

63 km SE of Taira, Japan

M 6

80 km ESE of Katsuren-haebaru, Japan

M 6

95 km NE of Nago, Japan

M 6

176 km SSE of Naze, Japan

Catalog fields and provenance
Event ID
iscgem881490
Coordinates
27.393, 128.536
Network
iscgem
Significance
559