Wiki information Servius: Maurus Servius Honoratus Person, Author. Maurus Servius Honoratus was a late fourth-century and early fifth-century grammarian, with the contemporary reputation of being the most learned man of his generation in Italy; he was the author of a set of commentaries on the works of Virgil. These... Galba
Events that occur in unpopulated areas are not considered disasters. So a flood on an uninhabited island would not count as a disaster, but a flood in a populated area is called a natural disaster. All natural disasters cause loss in some way. Depending on the severity, lives can be lost in any number of disasters.
A hazard is what causes a disaster. For example, the hazard of an earthquake causes a disaster of lost lives and damaged property.