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The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2] However, there is some uncertainty regarding its origins [ 3 ] and age, with some sources giving it as < 10 ka [ 2 ] [ 4 ] while the EID gives a broader < 100 ka.
As the trend in the Earth Impact Database for about 26 confirmed craters younger than a million years old shows that almost all are less than two km (1.2 mi) in diameter (except the three km (1.9 mi) Agoudal and four km (2.5 mi) Rio Cuarto), the suggestion that two large craters, Mahuika (20 km (12 mi)) and Burckle (30 km (19 mi)), formed only ...
Its walls are approximately 5 km (3 mi) high, [4] parts of its floor are 10–12 km (6–7 mi) deep, and its central peak rises 6–8 km (3 + 1 ⁄ 2 –5 mi) above the crater floor. [2] If there were a crater of an equivalent scale on Earth it would be over 4,000 km (2,500 mi) in diameter – wider than Canada – with walls over 200 km (120 ...
The system takes its name from Honolulu, the capital of Hawaiʻi, [7] as craters are scattered in and around the city. [8] The volcanic system includes well-known landmarks of Honolulu such as Diamond Head , Koko Head , Punchbowl Crater , [ 3 ] Rabbit Island , Tantalus , [ 9 ] Hanauma Bay (notable as a snorkeling site) [ 10 ] and the Mokapu ...
The Earth Impact Database is a database of confirmed impact structures or craters on Earth. It was initiated in 1955 by the Dominion Observatory , Ottawa, under the direction of Carlyle S. Beals . Since 2001, it has been maintained as a not-for-profit source of information at the Planetary and Space Science Centre at the University of New ...
In this dramatic illustration, a meteor falls toward Earth from space. A pair of asteroids that rammed into Earth more than 35 million years ago seemingly had no climate impacts, scientists said ...
Saturn's moon Mimas is known for its uncanny resemblance to the dreaded Death Star in the original "Star Wars" movie. Astronomers said on Wednesday that data obtained by NASA's Cassini spacecraft ...
Koko Crater, Hanauma Bay and other nearby tuff cones form the Koko Rift Zone, which marks the latest episode of volcanic activity on the island of Oahu. [1] Radiocarbon dating suggests that the latest eruption within the Koko Rift Zone occurred 7,000 years ago, [ 1 ] although the validity of these results are disputed. [ 2 ]