Question

How big is the biggest meteor that ever hit earth? How hard was the impact?

Answer 1

Reports on its diameter vary from 25 to 75 miles (40 to 120 kilometers). Specs: This impact crater formed what is now Lake Manicouagan. Even with erosion, it's considered one of the largest and best-preserved craters on Earth, with an estimated diameter of 62 miles (100 kilometers).