Jun 16, 2024 · "The Bloop" is the given name of a mysterious underwater sound recorded in the 90s. Years later, NOAA scientists discovered that this sound emanated from an iceberg cracking and breaking away from an Antarctic glacier.

This "Bloop" sound (452k, mp3) was repeatedly recorded during the summer of 1997 on the Equatorial Pacific Ocean autonomous hydrophone array. The sound rises rapidly in frequency over about one minute and was of sufficient amplitude to be heard on multiple sensors, at a range of over 5,000 km.

Original icequake (bloop) sound: Recorded signal sped up 16 times. Calving: Spectrogram of an iceberg calving (large section of iceberg breaking off) while adrift. The calving signal is short duration, broad band from 1-440 Hz generated by ice cracking and crack propagation. Audio sped up …

According to the NOAA description, the sound "rose" in frequency over about one minute and was of sufficient amplitude to be heard on multiple sensors, at a range of over 5,000 km (3,000 miles). The NOAA Vents Program has attributed the sound to that of …

Pictured above is a visual representation of a loud and unusual sound, dubbed a Bloop, captured by deep sea microphones in 1997. In the above graph, time is shown on the horizontal axis, deep...

Bloop is the name given to an ultra-low-frequency and extremely powerful underwater sound detected by the U.S. National Oceanic and Atmospheric Administration (NOAA) in 1997. The sound is consistent with the noises generated by icequakes in large icebergs, or large icebergs scraping the ocean floor. [3]

Spectrogram of an unidentified sound, referred to as "Bloop." The recorded signal has been sped up 16 times. Image courtesy of Sounds in the Sea 2001, NOAA/OER.

“The Bloop” is the given name of a mysterious underwater sound recorded in the 1990s. Years later, NOAA scientists discovered that this sound emanated from an iceberg cracking and breaking away from an Antarctic glacier.

Original icequake (bloop) sound: The broad spectrum sounds recorded in the summer of 1997 are consistent with icequakes generated by large icebergs as they crack and fracture. NOAA hydrophones deployed in the Scotia Sea detected numerous icequakes with spectrograms very similar to “Bloop”.

Dec 31, 2023 · "The Bloop was the sound of an icequake – an iceberg cracking and breaking away from an Antarctic glacier!" In recent years, new hydrophones operated by NOAA have recorded similar noises to the Bloop in the southern ocean and the Atlantic, sounds that were also made by icequakes.