QuestionsBloop and NOAA's unexplained ocean soundsWhat made the loud unidentified sounds recorded by NOAA's Pacific hydrophones in the 1990s?Answer
Answer · Bloop and NOAA's unexplained ocean sounds
None of these.
None of these.
Where it stands
No evidence yetIts tests haven't settled it: no evidence yet.
The questions it answers
Most likelyAll of them are natural geophysical or cryogenic sounds (icequakes, grounding icebergs, volcanic eruptions…
Cite it
Mysteries Department. (2026). None of these. [Answer ANS0D9C7GPR0Q8X]. https://mysteriesdept.com/r/ANS0D9C7GPR0Q8X
@misc{mysteriesdept_ans0d9c7gpr0q8x,
title = {None of these.},
author = {{Mysteries Department}},
year = {2026},
note = {Answer, catalog key ANS0D9C7GPR0Q8X},
url = {https://mysteriesdept.com/r/ANS0D9C7GPR0Q8X}
}