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Scientists say in 150 million years, Earth's continents will be in completely rearranged.

Take a look at this map:


Each plate moves in different directions, which will create new trenches, faults, and mountains. But...

Could the plates moving 2 centimeters every year cause them to move in different directions?

Scientists say plates with a convergent boundary will eventually crash into a different plate. So if the plates all crash into each other and they stop moving, will this be the end of new features on our planet?

Earth is the only known planet with tectonic plate activity, thanks to our molten core and mantle. It is true that these plates seem to move in different directions, creating great oceanic rifts where the spread apart and mountain ranges where one pushes under another. That's all old news though.

To answer your question directly - when earth's tectonic plates stop moving we are all doomed! It will be the end of life as we know it on Earth. The movement of the tectonic plates, and the related forces of volcanism, are vital to recycling crucial elements in the biosphere that would otherwise get permanently sequestered in deep sea sediments and the earth's crust. Furthermore, if the plates stop moving, it would likely mean that heat convection has ceased in the core and mantle. This would mean that Earth's magnetic field would probably be gone, or at least greatly diminished. Then the surface of the earth would be bombarded by lethal cosmic rays. I definitely don't want to be around when that happens, no siree!

I don't think the human race will live long enough to see an end to the earth. Not being cynical or anything, just saying that it would take a bit of time even on the geological time scale (in which human lifespans are a mere dot).

Maybe the sun will envelop the earth before the plates stop going. Who knows?

Yeah, I think that by the time anything major happens the human race might actually have the tech to not even be on this planet alone. What i mean is that we may have begun colonizing space by then.