QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000k09q
USGS us6000k09q

28 Mar 2023, 10:18

Hokkaido, Japan region

A magnitude 6 mww earthquake at 37 km depth.

Depth37 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated9 October 2024Latest timestamp stored in this record

Published location

Where is Hokkaido, Japan region?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

41.143400, 142.814800

Open the interactive map ↗

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.

Need a current safety answer?

Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.

Open the USGS event →

Continue exploring

Nearby events with a similar magnitude

M 6

127 km E of Miyako, Japan

M 6

109 km E of Yamada, Japan

M 6

137 km ESE of Yamada, Japan

M 6

168 km NE of Miyako, Japan

M 6

104 km ESE of ?tsuchi, Japan

M 6

124 km SE of Shizunai-furukawach?, Japan

Catalog fields and provenance
Event ID
us6000k09q
Coordinates
41.1434, 142.8148
Network
us
Significance
560