QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000a4z6
USGS us2000a4z6

5 Aug 2017, 01:04

Ascension Island region

A magnitude 5 mb earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated18 October 2017Latest timestamp stored in this record

Published location

Where is Ascension Island 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.

-5.825500, -12.573100

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 5

198 km ENE of Georgetown, Saint Helena

M 5

177 km ENE of Georgetown, Saint Helena

M 5

229 km ENE of Georgetown, Saint Helena

M 5

200 km ENE of Georgetown, Saint Helena

M 5

154 km ENE of Georgetown, Saint Helena

M 5

Ascension Island region

Catalog fields and provenance
Event ID
us2000a4z6
Coordinates
-5.8255, -12.5731
Network
us
Significance
385