QQuakeFacts
USGS usp000d3ar

1 Sept 2004, 03:49

65 km E of Iwaki, Japan

A magnitude 5.7 mwc earthquake at 34.9 km depth.

Depth34.9 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated2 May 2022Latest timestamp stored in this record

Published location

Where is 65 km E of Iwaki, 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.

36.959000, 141.607000

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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
usp000d3ar
Coordinates
36.959, 141.607
Network
us
Significance
500