QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000hhgs
USGS us1000hhgs

26 Oct 2018, 10:05

Mariana Islands region

A magnitude 5.9 mww earthquake at 8 km depth.

Depth8 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated3 May 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.

17.406400, 147.881200

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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

M 6

Mariana Islands region

M 6.1

Mariana Islands region

M 6.3

197 km E of Saipan, Northern Mariana Islands

M 6.3

Mariana Islands region

M 6.31

215 km ENE of Saipan, Northern Mariana Islands

M 5.4

Mariana Islands region

Catalog fields and provenance
Event ID
us1000hhgs
Coordinates
17.4064, 147.8812
Network
us
Significance
536