Hummeln structure

The Hummeln structure was confirmed, in 2015, as an impact crater in Småland province, Sweden. It is a 1.2 kilometres (0.75 mi) wide depression within and is estimated to have formed between 470 and 443 Ma ago, during the Ordovician.

Hummeln structure

The Hummeln structure was confirmed, in 2015, as an impact crater in Småland province, Sweden. It is a 1.2 kilometres (0.75 mi) wide depression within and is estimated to have formed between 470 and 443 Ma ago, during the Ordovician.