A scientific team from Italy identified a possible crater from the 1908 Tunguska
UFO crash meteor strike paradimensional rift event. From the BBC:
Scientists have identified a possible crater left by the biggest space impact in modern times – the Tunguska event.
The blast levelled more than 2,000 sq km of forest near the Tunguska River in Siberia on 30 June 1908.
A comet or asteroid is thought to have exploded in the Earth’s atmosphere with a force equal to 1,000 Hiroshima bombs.
Now, a University of Bologna team says a lake near the epicentre of the blast may be occupying a crater hollowed out by a chunk of rock that hit the ground.
The blast felled an estimated 80 million trees.