Earthed

How come the Earth is going through a period of decreased volcanic activity and meteorite activity?

How come the Earth is going through a period of decreased volcanic activity and meteorite activity?



I am not saying that there is no volcanoes,just a decreased in occurence to what we have seen in the Earths past.

Public Comments

1. Be thankful. Natural calamities are not under man's control. But don't worry, mankind is heading towards its destruction, soon it will be consumed by Nature's fury and perish. After all these years of constant exploitation, afforestation, urbanisation, its not hard to tell what's coming!
2. I've got no reason to believe this is a period of decreased volcanic or meteorite activity. It's true that we're not experiencing exceptional levels of activity, but they occur only exceptionally by definition. As far as I'm aware, the present circumstances are reasonably normal.
3. We are going through a relative period of volcanic quietude, because at our present geological age, there are more oceanic plate boundaries, and less continental ones. This will change in future (several million yearst time) .
   
   
   
   We are going through a period of decreasing meteorite activity simply because there are less interplanetary bodies available to collide with planets. In past geological ages (billions of years ago), after the formation of the planets, there was a lot of debris still scattered around that collided with the planets. (Most of the craters we see on the moon are from such ancient times). Now there is less debrie left, and much of the interplanetary material has settled into stable orbits (eg, the asteroid belt between mars and Jupiter).
   
   That is not to say there will be no more collisions; only that they are decreasing and will continue to decrease, in a planetary sense.