QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgemsup16957860
USGS iscgemsup16957860

11 Jul 1905, 15:37

Mariana Islands region

A magnitude 7.2 mB earthquake at 200 km depth.

Depth200 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated4 March 2025Latest 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.

21.572000, 143.894000

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 7.2

Pagan region, Northern Mariana Islands

M 7.2

Mariana Islands region

M 7.2

Pagan region, Northern Mariana Islands

M 7.1

Pagan region, Northern Mariana Islands

M 7

Mariana Islands region

M 7.5

Northern Mariana Islands

Catalog fields and provenance
Event ID
iscgemsup16957860
Coordinates
21.572, 143.894
Network
iscgemsup
Significance
798