QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000db68
USGS us1000db68

30 Mar 2018, 00:17

18 km E of Funaishikawa, Japan

A magnitude 5 mwr earthquake at 40.2 km depth.

Depth40.2 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 June 2018Latest timestamp stored in this record

Published location

Where is 18 km E of Funaishikawa, 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.

36.437500, 140.773600

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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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Catalog fields and provenance
Event ID
us1000db68
Coordinates
36.4375, 140.7736
Network
us
Significance
468