2026-03-06T20:31:51.0000Z38.8143142.385449.239manualconfirmedIRIS4.8Mww1Origin/20260307181336.367681.38657Magnitude/20260307181336.367738.38658IRISNEAR EAST COAST OF HONSHU, JAPANregion nameNEIC PDEcatalogus7000s2mtcontributorID