The Bloop, 1997: The Ocean Sound That Was Ice — updates · Anomaly LedgerAppend-only living-dossier updates for “The Bloop, 1997: The Ocean Sound That Was Ice”.https://theanomalyledger.com/en-usCase file opened: The Bloop, 1997: The Ocean Sound That Was Icehttps://theanomalyledger.com/cases/bloop-1997/https://theanomalyledger.com/cases/bloop-1997/NOAA hydrophones caught a huge low sound in 1997. NOAA later matched it to cracking icebergs.Sun, 25 Oct 2026 00:00:00 GMTPublished