QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us20009z1e
USGS us20009z1e
18 Jul 2017, 00:41
139 km W of Attu Station, Alaska
A magnitude 5.4 mb earthquake at 10 km depth.
Published location
Where is 139 km W of Attu Station, Alaska?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
52.784300, 171.113700
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.
Continue exploring
Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
us20009z1e
Coordinates
52.7843, 171.1137
Network
us
Significance
449