In our research project INDYCO (Integrated Dynamic Decision Support System Component for Disaster Management Systems) we are coupling situation/risk assessment and workflows of workforces. As a common ground we are searching for natural hazard ontologies/taxonomies that are also integrating corresponding control and mitigation measures. If you have any hints, please let me know.
http://www.uar.at/pages/de/aktuelles/news/details.aspx?Guid=b42d4885-7581-4cd1-a7de-77127fb1cd1a