How do people predict natural hazards?

Answer 1

Earthquakes and tsunamis can be predicted with the use of animals. Usually, before earthquakes, many animals' and insects' behaviors, such as toads, elephants and more, become erratic. They would try to break out the cages and chains, wanting to escape. Toads and other insects will come out of their usual hiding places such as drains, holes etc. in large groups.

Hurricanes, tornadoes and cyclones can be predicted easily with the use of advanced meterological and satellite systems. The technology will track down the speed, size, direction of the winds, and warnings will then be given out.

Floods can be predicted with water level tracking systems placed on buoys in the waters. They will measure the speed of current, water level and others. Once the water level reaches a dangerous level, warnings will be given. Meteorological stations will also record the amount of rainfall to make sure it does not flood the lands.

Volcanic eruptions are predicted with the initial tremors before the huge eruption itself. Researchers and vulcanologists will be sent to the volcano site to monitor the activities of the volcano that signals any sign of eruption. The radius of the danger zone can be easily calculated based on previous eruptions, the type and size of the volcano.

Avalanches, landslides and mudflows can be predicted with a sense of precaution. One should quickly evacuate after heavy snows and rains as these natural disasters may follow after that.

However, disasters such as lightning strikes (thunderstorms), fires and such cannot be predicted, but can be prevented.

Disasters such as solar flares, meteroid crashes and other astronomical events can be predicted, but might not be prevented.