Source summary (excerpt): “PAGER - GREEN ShakeMap - III DYFI? - III Time 2026-10-31 22:15:02 UTC 2026-10-31 22:15:02 UTC at epicenter Location 33.822°N 136.985°E Depth 352.45 km (219.00 mi)” Sourcing: official primary source; see the linked release.
GeopoliticsBRIEF
Magnitude 6.0 earthquake strikes 58 km SSE of Shima, Japan, USGS says
USGS published an official release on Sat Oct 31, 9:02 PM CT: Magnitude 6.0 earthquake strikes 58 km SSE of Shima, Japan, USGS says.
What happened
Reported from USGS. Site-only brief: it was not posted on X.