Topic Feature

Lava Flows

February 6, 2019

When a volcano erupts, the molten rock that comes out of the Earth is called lava. Lava is so hot, it remains molten and flows until it cools and hardens into rock.

Hydrophone arrays “hear” and record sound waves generated by seismic events, submarines, or whales, and are installed in places that don’t block sound wave transmission.