3. Speed of Onset in Hazard Management
The chapter discusses the characteristics and processes involved in various hazards, emphasizing the significance of factors like speed of onset and spatial distribution in disaster risk management. It also highlights the patterns and impacts of different types of disasters, particularly hydro-meteorological events, and notes the historical data on human loss and disaster occurrences from 1980 to 2005. The predominance of floods and the geographical distribution of disasters, especially in Asia, provide crucial insights into the ongoing challenges faced by communities.
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Sections
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What we have learnt
- Speed of onset of disasters affects preparedness and response.
- Hazards cannot be avoided but can be managed effectively through understanding their nature and patterns.
- Most disasters reported from 1980 to 2005 were hydrometeorological, with significant human impact, particularly in developing countries.
Key Concepts
- -- Speed of Onset
- The rapidity with which a disaster occurs, influencing the time available for response and preparedness.
- -- Hydrometeorological Disasters
- Disasters that are primarily caused by atmospheric and hydrological processes, such as floods, droughts, and storms.
- -- Tectonic Plates
- Large slabs of the Earth's crust that move and interact, resulting in seismic activity like earthquakes.
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