QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000031p
USGS usp000031p
9 Aug 1973, 11:44
45 km SSW of Shikotan, Russia
A magnitude 6 mb earthquake at 55 km depth.
Published location
Where is 45 km SSW of Shikotan, Russia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
43.446000, 146.433000
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
usp000031p
Coordinates
43.446, 146.433
Network
us
Significance
554