The Townsend Thoresen cross-Channel ferry Herald of Free Enterprise capsized outside the Belgian port of Zeebrugge on the 6th of March with the loss of 135 lives.
A large wave from a distant storm caused the ferry to capsize.
( z1 cause :ARG0 ( z2 wave :mod ( z3 large ) :source ( z4 storm :ARG1-of ( z5 distant ) ) ) :ARG1 ( z6 capsize :ARG1 ( z7 ferry ) ) )