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Asteroid impact in Lappajärvi

73 million years – 73 meters

The lake filled the depression inside a large asteroid impact crater. (Google Maps)

An asteroid, with a diameter of about 500 m, hits Lappajärvi at about 50 km per second. The impact is equivalent to a million Hiroshima atomic bombs, but without the radioactive radiation. The explosion kills everything within a few hundred kilometres.

Kuva: Lappajärvi is a meteorite crater. Google Maps