QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem884248
USGS iscgem884248
23 Apr 1958, 03:57
Kuril Islands
A magnitude 6 mw earthquake at 25 km depth.
Published location
Where is Kuril Islands?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
45.313000, 151.749000
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
iscgem884248
Coordinates
45.313, 151.749
Network
iscgem
Significance
561