The election represented the potential for important economic relations to collapse or continue. Civilization is destroyed from the result of societal collapse. The Tokugawa did not eventually collapse simply because of intrinsic failures. The kingdom would be one of the many destroyed during the Bronze Age Collapse. The first sign of a possible bubble collapse appeared in 1988. Earthquakes may cause landslips to dam rivers, which collapse and cause floods. This was determined to be the cause of the roof collapse. Their markets did not collapse, but they were severely hit. The ocean is in great danger of collapse. Many trenches would collapse due to rain. There have been many explanations put forward for the collapse of civilization. They argue this is part of the global fishery collapse. Technically, states do not collapse directly due to a sovereign default event itself. There were no casualties associated with the collapse. The cause was diagnosed as a spinal artery collapse.