The aim of this report is to assist agencies working in the tsunami crisis by highlighting seven generic lessons that have been learned from other natural disasters, specifically floods and earthquakes. The report distils main findings and lessons from evaluations and synthesis reports contained in the ALNAP Evaluative Reports Database (ERD), as well as other learning initiatives concerned with responses to natural disasters. Where possible it provides links to these documents as well as to additional relevant papers and web sites. These are listed in the footnotes and the references.