Estimates of the total death toll vary considerably. The official immediate death toll was 2,259. The highest estimated death toll is however 2,000,000. The overcrowding contributed significantly to the high death toll. Its powerful storm surge was responsible for the high death toll. The death toll from the attack remains unknown. A lack of preparation for the disaster contributed to the high death toll. Estimates of the death toll vary widely. This is a list of accidents and disasters by death toll. The average annual US death toll from flu is, however, estimated to be 36,000. An Irish death toll of over 100,000 is possible. The figures of the death toll vary. The exact death toll from this conflict is unknown. These slaves suffered a high death toll. The official death toll is now 72.