QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem874937
USGS iscgem874937
23 Jun 1962, 10:44
Ryukyu Islands, Japan
A magnitude 6.5 mw earthquake at 23 km depth.
Published location
Where is Ryukyu Islands, Japan?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
25.480000, 128.327000
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
iscgem874937
Coordinates
25.48, 128.327
Network
iscgem
Significance
654