QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0003fqr
USGS usp0003fqr

7 May 1988, 02:59

56 km SE of Obihiro, Japan

A magnitude 6 mw earthquake at 72.3 km depth.

Depth72.3 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated28 April 2022Latest timestamp stored in this record

Published location

Where is 56 km SE of Obihiro, 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.

42.601000, 143.751000

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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
usp0003fqr
Coordinates
42.601, 143.751
Network
us
Significance
554