Craters on Earth
 

It is not easy to recognize impact craters on Earth. In fact, even if Earth, being much bigger, must have been much more impacted than the Moon, its surface seems to be much less scarred. This depends on the fact that the Earth surface is continually erased and changed by erosion and redeposition, as well as volcanic resurfacing and tectonic activity.

Today thanks to photo from satellites, about 200 impact craters have been catalogued.

Barringer (or meteor) Crater , Arizona, age: 49,000 years, diameter: 1.186 Km
This is the first simple crater discovered and recognized on Earth. Its meteoritic nature has been confirmed with the discovery of fragments of what is now called the Canyon Diablo meteorite.
Photo: U.S. Geological Survey
Chicxulub , Mexico, age: 64.98 million years, diameter: 170 Km
It is a deep sea crater, hidden from view by several hundred meters sediment. It is thought to have been produced by a 10 Km asteroid, causing the extinction of more than 50% species on Earth, including dinosaurs.
Photo: V.L. Sharpton, LPI
Wolfe Creek, Australia, age :300,000 years, diameter: 0.875 Km
Relatively buried under wind blown sand, this crater has been recognized as an impact one thanks to the remnants of iron meteorite and impact glass that have been found inside the crater.
Photo: V.L. Sharpton, LPI
Manicougan, Canada, age: 212 million years, diameter :100Km
This is one of the largeest craters still preserved. In this Shuttle image the 70 Km ice-covered anular lake that fills what remains of ring of the impact crater canm be seen. Erosion has removed the original ring that is thought to have had a diameter of 100 Km.
Photo: NASA/LPI
Clearwater Lakes, Canada, age: about 300 milion years, diameters: 32 and 22 Km
A rare twin impact crater, formed by two separated but probably related impactors. The two structures are complex craters with a central uplift of the primary lake formed by a ring of prominent islands , while the the peak of the smaller lake is submerged.
Photo NASA/LPI
Gooses Bluff, Australia, age: about 142 million years, diameter: 22 Km
This is a higky eroded structure, clearly identified as an impact crater by the central ring of hills thata have been formed by erosion of the central uplift. The rim itself has been eroded and is no longer visible .
Photo: NASA/LPI