Disasters cause great disruption for human, environment and assets. To mitigate or reduce the impact of disasters; hazard, vulnerability, and risk analysis are performed within the risk management activities. Disaster management generally occurs in four successive stages. Damage mitigation and preparedness stages for pre-disaster, response and recovery stages for post-disaster interact with one another. Success in disaster management depends on successfully realization of the activities that are performed in the disaster cycle. Disaster risk management contains activities such as hazard, vulnerability, risk assessment, and analysis.