Here’s a wild fact: the ocean floor is constantly being made and then eaten. At mid-ocean ridges, hot magma oozes up, cools, and forms new crust. It’s like the Earth is baking its own pizza crust nonstop.
Then, at deep-sea trenches, old crust gets shoved back down into the mantle. This process is called subduction, and it’s the planet’s ultimate recycling program. Your car's metal probably came from a volcano’s leftovers that rose up from this recycled crust.
It’s a Fizzy Soda Can (but Much Bigger)
The crust acts like a pressure lid. Deep inside, gases and molten rock are under insane pressure. When the crust cracks or weakens, that pressure releases in dramatic fashion—hello, volcanoes and earthquakes!
What Is The Internal Structure Of The Earth Pdf - Infoupdate.org
So, that rumbling you feel? That’s just the crust saying, “Hey, I’m stretching!” It’s a little cranky, but we forgive it because… well, it’s our floor.