About: http://webisa.webdatacommons.org/224963950

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They calculated the likelihood based on the assumption that the frequency of major attacks, like earthquakes and other natural disasters, using mathematical power law.
http://www.w3.org/ns/prov#wasQuotedFrom	bellenews.com