The 183 meter long, 18461 dwt vehicle carrier Grande Europa departed Emden and was headed for Walhamn.  The Grande Europa passed by the 199 meter long, 22657 dwt vehicle carrier Triton Leader which was just departing for Bremerhaven.    As the Grande Europa passed by, the suction pulled the Triton Leader and swung it back onto the quay.  The stern struck the quay causing considerable damage to the quay.   No reports of injuries.   The Triton Leader was able to depart a short time later.  No pollution was released.