QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem905724
USGS iscgem905724
19 Jul 1933, 16:00
43 km S of Atka, Alaska
A magnitude 6.1 mw earthquake at 35 km depth.
Published location
Where is 43 km S of Atka, 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.
51.807000, -174.232000
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
iscgem905724
Coordinates
51.807, -174.232
Network
iscgem
Significance
574