How many Earth impact craters are there?

Question

How many Earth impact craters are there?

Answer 1

Kathy O has given you the best answer so far, the most famous impact crater that is under the sea was the one on the Cretaceous/Tertiary boundary that landed in the present Gulf of Mexico . This one has been implicated in causing the mass extinction of many fauna including the Dinosaurs

Answer 2

the earth undoubtedly has more impact craters on it than the moon, since the earth has greater attractive mass. however the vast majority have dissapeared due to changes to the earth, such as errosion, subduction, changing sea levels, and the majority are simply covered by the oceans. there are still several dozen craters that are still visible.

Answer 3

i assume thinking approximately it would be too no longer basic. A. The moon formed from the Earth, so it won't be able to be older. B. How can the Earth have only been "fortunate" while the moon is smaller than we are and hence much less of a objective (and has a smaller gravitational field). C. Magnetic fields won't be able to deflect meteoroids (that used to verify in grade 8 technology, perhaps its no longer taught anymore). D. The moon does not have volcanoes or plates. E. The moon has no atmosphere to sluggish meteoroids down and cushion the impression. F. The moon has no climate to erode the outdoors (no rain, wind, snow, ice, etc.). G. The moon has no existence (plant, micro organism, animal, human) to erase impression craters.

Answer 4

I'll add to the above that some massive ones are clearly labeled - such as the Yucatan- and found in most geology books.

Answer 5

Nobody knows for sure. Undoubtedly there are some that have not been recognized, and there are lots that have been obliterated by erosion and other wear and tear.

Answer 6

We don't know yet. We are still counting. It is the age of the satellite that has really opened up this topic again.