Evidence · Bloop and NOAA's unexplained ocean sounds

Iceberg A53a produced harmonic tremor while scraping shoals, recorded on nearby hydrophones.

Established0

What it bears on 1 answer

All three were produced by large icebergs settling on or dragging across the seafloor.

Most likely

FOR

Cite it

Mysteries Department. (2026). Iceberg A53a produced harmonic tremor while scraping shoals, recorded on nearby hydrophones. [Evidence EVD0D9C7PJ80V8E]. https://mysteriesdept.com/r/EVD0D9C7PJ80V8E

@misc{mysteriesdept_evd0d9c7pj80v8e,
  title     = {Iceberg A53a produced harmonic tremor while scraping shoals, recorded on nearby hydrophones.},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Evidence, catalog key EVD0D9C7PJ80V8E},
  url       = {https://mysteriesdept.com/r/EVD0D9C7PJ80V8E}
}