The iceberg, about 15 by 35 miles in size (25 to 55 kilometers), created more than one kind of sound. There were harmonic tremors when it hit the ocean floor and got stuck.

The best way to tell if an iceberg hasn't rolled recently is by its colour; the more stark white the berg is, the safer it is. When the colour is more blue, it means that side recently absorbed water.

Origins: The explanation reproduced above about a diver in St. Johns, Newfoundland, snapping a stunning underwater photograph of an enormous iceberg is a charming story, but it isn't true, nor is ...

The iceberg, about 15 by 35 miles in size (25 to 55 kilometers), created more than one kind of sound. ... military sonar and underwater oil and gas exploration may affect marine life.

Strong underwater currents caused the iceberg, dubbed A68a, to pivot nearly 180 degrees before splitting apart. It was only 31 miles away from the shores of the island.

Ice can break off the glacier underwater, then burst to the surface and float away. In August of 2013, scientists used underwater microphones to record calving events at the Hans Glacier in Norway.

The iceberg, about 15 by 35 miles in size (25 to 55 kilometers), created more than one kind of sound. There were harmonic tremors when it hit the ocean floor and got stuck.