Still gathering information on this one but below is an extract off a yachting forum.
"While riding out cyclone Lisa in 1991, anchored in Denham Bay on Raoul Island in the Kermadecs, a neighboring vessel broke her chain. The vessel was a ferro brigantine, the Solano, some 55 ft LOD, and perhaps 30-40 tonnes displacement, but I don't know that number for sure. She was anchored on 100 feet of 1/2 inch chain and a huge (135 lb) Danforth anchor, in about 30 feet of water, sand bottom, NO SNUBBER. We were experiencing gusts around 60 knots from differing directions at the time, and I believe that the Solano, about 2-3 cables away had the same conditions. I will not comment on the advisability of her skippers behavior. The vessel was then deliberately run ashore and subsequently broke up in short order."