The goal of this analysis is to answer the following two questions using the NOAA Storm Database. Across the United States: 1. Which types of events are most harmful with respect to population health? 2. Which types of events have the greatest economic consequences? Analysing the data it is possible to identify that the type of event that causes the most fatalities and injuries in the population are by far the tornados. The type of event that causes the most damage to properties and crops are the various types of floods, followed by the hurricanes and just then the tornados.