<http://webisa.webdatacommons.org/383857991> <http://www.w3.org/ns/prov#wasQuotedFrom> <wordpress.com> . <http://webisa.webdatacommons.org/383857991> <http://www.w3.org/ns/prov#value> "Whittow in 1980 defines a hazard as a ???perceived natural event which has the potential to threaten both life and property, and a disaster is the realisation of this hazard.??? Earth hazards can therefore include all natural events including earthquakes, volcanoes, flooding and mass movement." . <http://webisa.webdatacommons.org/prov/38767993> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/383857991> . <http://webisa.webdatacommons.org/383857991> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> .