# Some of the three are groundings and others are different sources (for example icequakes or tremor from bergs…

> No evidence yet: Some of the three are groundings and others are different sources (for example icequakes or tremor from bergs colliding).

Source: https://mysteriesdept.com/mysteries/noaa-ocean-sounds/answers/ANS0D9C7Q9P772G/some-of-the-three-are-groundings-and-others-are-different  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Bloop and NOAA's unexplained ocean sounds](https://mysteriesdept.com/mysteries/noaa-ocean-sounds)[Were Train, Slow Down and Julia made by icebergs grounding on the seafloor?](https://mysteriesdept.com/mysteries/noaa-ocean-sounds/questions/QST0D9C7D1J3NMQ/were-train-slow-down-and-julia-made-by-icebergs-grounding-on)Answer

Answer · Bloop and NOAA's unexplained ocean sounds

# Some of the three are groundings and others are different sources (for example icequakes or tremor from bergs…

Some of the three are groundings and others are different sources (for example icequakes or tremor from bergs colliding).

**No evidence yet** Answers **1** questionDeduced0

## Where it stands

**No evidence yet** Its tests haven't settled it: no evidence yet.

## What it predicts

- The three spectra fall in different clusters when scored against labelled ice recordings.

## What would rule it out

- All three cluster with labelled grounding signals.

## The questions it answers

[Were Train, Slow Down and Julia made by icebergs grounding on the seafloor?](https://mysteriesdept.com/mysteries/noaa-ocean-sounds/questions/QST0D9C7D1J3NMQ/were-train-slow-down-and-julia-made-by-icebergs-grounding-on)

Part of [What made the loud unidentified sounds recorded by NOAA's Pacific hydrophones in the 1990s?](https://mysteriesdept.com/mysteries/noaa-ocean-sounds/questions/QST0D9C7CA41BJB/what-made-the-loud-unidentified-sounds-recorded-by-noaas)

Most likelyAll three were produced by large icebergs settling on or dragging across the seafloor

## Cite it

```
Mysteries Department. (2026). Some of the three are groundings and others are different sources (for example icequakes or tremor from bergs… [Answer ANS0D9C7Q9P772G]. https://mysteriesdept.com/r/ANS0D9C7Q9P772G
```

Key

**ANS** 0D9C7Q9P772G

Kind

Answer · hypothesis

Origin

Deduced

Version

1

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