Natural Disasters and Prevention
We are at a time where our society is able to bring the full force of scientific and technological advances to reduce the number of human tragedy and economic losses due to natural disasters. Although, we must take an integrated and diverse approach to disaster reduction, bringing new emphasis to research on disasters, on pre-disaster planning, and on preparedness. It is up to us to include disaster education and preparedness of the public as well as early warning systems, in which people at risk receive, understand, and act upon the warning information conveyed.
Natural Disasters are the consequences or effects of natural hazards. They represent human, property and economic losses and they signify a serious breakdown in sustainability and disruption of economic and social progress. The overwhelming number of dead or seriously injured and homeless people after the occurrence of a natural disaster and the massive amount of money to be spent for reconstruction and rehabilitation equates to a natural disaster. They are nothing else but extreme environmental events that impact human activities. Hurricanes, earthquakes, tsunamis and volcanic eruptions are the most frequents threats, as well as
These techniques begin with the construction of buildings, since 75 of injuries occur in some type of structure. Although these non-structural plans are extremely important, scientific and technological methods of mitigation are currently becoming just as practical. The Insurance Institute for Property Loss Reduction (IIPLR) is one company leading the way in research and development of safer structures. Satellite photographs of the storm or the tropical cyclone are also available on fax machines. Additionally, we need to emphasize planning for the mitigation of natural disasters through a good understanding, not only of the physical nature of the phenomena and their manifestations in each geographical locality, but also of each area's combined physical, social, and cultural factors. Earthquake prediction is still in the research stage. Such methods are not sufficiently developed to be of value for warning purposes. There are three areas where our efforts should be concentrated for mitigation: improving hazard awareness, improving understanding of mitigation, and making disaster risk management an essential part of the development planning process. For example, four zones usually represent seismic risk in accordance to expectancy of earthquake damage. Since the largest obstacle for mitigation of natural disaster is being uninformed, another tool of mitigation used to improve understanding of natural disasters is being implemented in the schools. The indirect effect results from the decline in production and in the provision services, loss of revenue due to disruption of production and services, and increased costs of goods and services. Basically saying that the high-rise steel skeletal should have shock absorbers for seismic energy. Similar maps can be prepared for other natural hazards. Finally, the most effective warning systems lies with the hurricanes, since we can watc!h them developing over months in advance before they cause any damage. Statistical techniques have been used to show the specific probability of occurrence of sele!cted hazard parameters in a specified time interval.