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USGS iscgem901160

17 Jan 1940, 01:14

Mariana Islands region

A magnitude 7.5 mw earthquake at 15 km depth.

Depth15 kmPublished hypocentral depth

Tsunami flagNot flaggedUSGS catalog flag, not a current warning

Updated26 April 2022Latest timestamp stored in this record

Published location

Where is Mariana Islands 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.

17.139000, 148.059000

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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

198 km E of Saipan, Northern Mariana Islands

233 km ESE of Saipan, Northern Mariana Islands

215 km ENE of Saipan, Northern Mariana Islands

197 km E of Saipan, Northern Mariana Islands

Mariana Islands region

Mariana Islands region

Catalog fields and provenance

Event ID

iscgem901160

Coordinates

17.139, 148.059

Network

iscgem

Significance

865