QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000f45x
USGS us6000f45x

11 Aug 2021, 16:02

Mariana Islands region

A magnitude 5.5 mww earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 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.

15.905300, 147.258300

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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 5.5

63 km SE of Yigo Village, Guam

M 5.5

137 km SE of San Jose Village, Northern Mariana Islands

M 5.5

141 km NW of Saipan, Northern Mariana Islands

M 5.5

121 km SW of Merizo Village, Guam

M 5.5

130 km NW of Saipan, Northern Mariana Islands

M 5.5

141 km NW of Saipan, Northern Mariana Islands

Catalog fields and provenance
Event ID
us6000f45x
Coordinates
15.9053, 147.2583
Network
us
Significance
465