Question

what is mitigation strategies (disaster management)
and tell mitigation before , during and after disaster?

Answer 1

Disaster mitigation measures are those that eliminate or reduce the impacts and risk of hazards through proactive measures taken before on emergency or disaster occur.one of the best known examples of investment in disaster mitigation is Red River Floodway.

Answer 2

 

How can earthquake hazard be mitigated? Evacuation is rarely an effective strategy for mitigating earthquake hazard, because it is not possible to predict the precise timing, location and size of an earthquake to a sufficiently high degree of accuracy. Seismic monitoring and research provide the basis for forecast modelling and hazard assessment and mapping. Geoscientists can provide information about these matters, and can engage with local authorities and communities to ensure that this information is used effectively to minimise risk to people and property. They are likely to undertake this vital work only if their roles and those of others are clearly defined and they feel confident that they can offer geoscientific advice which meets high professional standards without fear of retribution. The UN identifies the two highest priorities in reducing the effects of earthquakes to be the alleviation of poverty and the development of effective governance. Human habitation is strongly concentrated in seismically active areas, such as at the foot of fault-controlled mountain rangefronts where water may be available in otherwise inhospitable areas. Previously small rural communities have grown into cities or megacities over just a few decades, so the period for which such great concentrations of population have been exposed to high levels of earthquake hazard is very short. Falling buildings are by far the greatest cause of casualties during earthquakes, so it is essential that new buildings are constructed to withstand their effects. Existing buildings can be retrofitted to withstand earthquakes, but this is much more expensive than doing so at the time of construction. It is also essential that the local population are aware of the risks and know how to act during an earthquake. This can be a particular challenge in areas which are not frequently seismi