The Bloop recording

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A broadband sound heard on hydrophones more than 5,000 km apart. NOAA matches its spectrogram to icequakes recorded in the Scotia Sea and places the source, by its arrival direction, between Bransfield Strait and the Ross Sea, possibly at Cape Adare.

NOAA Pacific Marine Environmental Laboratory, 1997. Public domain

Copies 3

AudioNOAA Pacific Marine Environmental Laboratory · pmel.noaa.gov · Public domain (US government work)Primary source: Acoustics Monitoring Program: Icequakes (Bloop)2 steps from the original

Where it's published Download

DocumentNOAA Pacific Marine Environmental Laboratory · pmel.noaa.gov · Public domain (US government work)Primary source: Acoustics Monitoring Program: Icequakes (Bloop)2 steps from the original

Where it's published Download

PhotographNojhan · commons.wikimedia.org · CC BY-SA 3.01 step from the original

Where it's published

Where it was recorded

Bloop source region, between Bransfield Strait and the Ross Sea · Antarctic coast (approximate location)

Sources 1

Acoustics Monitoring Program: Icequakes (Bloop)SRC

Cite it

Mysteries Department. (2026). The Bloop recording [Artifact ART0D9C7SQT2DSN]. https://mysteriesdept.com/r/ART0D9C7SQT2DSN

@misc{mysteriesdept_art0d9c7sqt2dsn,
  title     = {The Bloop recording},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Artifact, catalog key ART0D9C7SQT2DSN},
  url       = {https://mysteriesdept.com/r/ART0D9C7SQT2DSN}
}