Mysterious tremors were felt on the Danish Baltic Sea island of Bornholm. The earth shook there on Saturday (13 May) An expert rules out an earthquake in Denmark as the cause.
An explosion in Poland may have triggered the tremors on Bornholm, says the expert. The police on the island announced on Saturday that they had received several reports of earthquake-like tremors - especially in the east of the island. A spokesman could not give further details on Sunday at the request of dpa.