The effectionately-called 'Shark of Science' is a multiple hydrophone array with 16 hydrophones
spanning the water column in the vertical and 32 phones laying along the ocean bottom (80 meters
deep) in the horizontal. During an experiment 100 miles off the coast of New Jersey we often
picked up sounds from unexpected sources - like a boat passing by or a thunderstorm.

This one is a pleasure/fishing boat zooming by. (ALERT - LOUD!!)
Play speedboat

The thunderstorm captured here had to be directly overhead to be heard at the ocean bottom.
Play thunder