Kärdla crater
Encyclopedia
Kärdla is a meteorite
crater
near the town of Kärdla
in Estonia
.
It is 4 km (2.5 mi) in diameter and its age is estimated to be about 455 million years (Upper Ordovician
). The crater is not exposed at the surface.
Meteorite
A meteorite is a natural object originating in outer space that survives impact with the Earth's surface. Meteorites can be big or small. Most meteorites derive from small astronomical objects called meteoroids, but they are also sometimes produced by impacts of asteroids...
crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
near the town of Kärdla
Kärdla
Kärdla is the largest town on the Estonian island of Hiiumaa and the capital of Hiiu County.-Geography:Kärdla is located on the north-eastern coast of Hiiumaa, by the Gulf of Tareste . Southeast of the town is the Kärdla meteorite crater, which is 455 million years old.Several small rivers flow...
in Estonia
Estonia
Estonia , officially the Republic of Estonia , is a state in the Baltic region of Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia , and to the east by Lake Peipsi and the Russian Federation . Across the Baltic Sea lies...
.
It is 4 km (2.5 mi) in diameter and its age is estimated to be about 455 million years (Upper Ordovician
Ordovician
The Ordovician is a geologic period and system, the second of six of the Paleozoic Era, and covers the time between 488.3±1.7 to 443.7±1.5 million years ago . It follows the Cambrian Period and is followed by the Silurian Period...
). The crater is not exposed at the surface.