Natural disasters, especially those related with water-like storms and floods-have been increased over the last decades both in number and intensity. According to Insurance Federation data, storms and floods comprise more than 75% of economic losses with respect to the total of natural disasters. Firstly, this paper aims to analyze how the flood risk analysis has been studied and evaluated through a literature review. It shows an evolution from a technical vision (dams, dikes an retention systems constructions) to a more complex risk management framework. Despite their importance, risk studies in water area hardly achieves the 3% of the total published papers. Under the current Climate Change framework, several reports predict an increase of these extreme events at a global scale. However, regional studies often find trends that do not match with the global behavior. So, a second goal of the paper is to study flood events evolution on both Spain and Andalusian Mediterranean region using National and regional dataset. The analysis shows a positive tendency in the number of annual events.