The Baltic Sea anomaly was located at the center of the Gulf of Bothnia.
Notes on verification
Multiple independent sources corroborate the specific location, consistent with Wikipedia and original reporting. [tier=unverified indep_score=0.3 clusters=4 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- Baltic Sea anomaly (wikipedia)
- https://www.marineinsight.com/maritime-history/the-baltic-sea-mystery-of-the-strange-ufo-object/ (corroboration)
- https://www.discoveryuk.com/mysteries/the-baltic-sea-anomaly-natural-formation-or-alien-artefact/ (corroboration)
- https://explorersweb.com/is-the-baltic-sea-anomaly-natural-man-made-a-hoax-we-explore-the-possibilities/ (corroboration)
- https://sickhistory.com/baltic-sea-anomaly/ (corroboration)