Natural Hazards and Disasters

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A disaster is an undesirable occurrence resulting from forces largely outside human control, which strikes quickly with little warning, causes serious disruption of life and property including death a…

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Natural hazards are elements in the natural environment that have potential to cause harm to people or property (like steep slopes, ocean currents). Natural disasters are relatively sudden events caus…

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1. Atmospheric: Cyclones, tornadoes, drought, heat waves, cold waves 2. Terrestrial: Earthquakes, volcanic eruptions, landslides, avalanches 3. Aquatic: Floods, tsunamis, storm surges, tidal waves 4.

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Earthquakes are unpredictable because they occur suddenly without warning due to tectonic plate movements. They are highly destructive as they affect large areas, destroy infrastructure, transport lin…

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The Northeast states, areas north of Darbhanga and Araria along Indo-Nepal border in Bihar, Uttarakhand, Western Himachal Pradesh (around Dharamshala), Kashmir Valley in the Himalayan region, and Kach…

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Tsunami (harbour waves) are high vertical waves caused by earthquakes and volcanic eruptions that make the sea-floor move abruptly, displacing ocean water suddenly. The initial disturbance creates a s…

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In deep ocean, tsunamis have very long wavelength and limited wave height, raising ships only 1-2 meters. In shallow water near coasts, wavelength reduces while period remains unchanged, increasing wa…

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1. Large continuous supply of warm, moist air releasing enormous latent heat 2. Strong Coriolis force preventing low pressure filling at center 3. Unstable conditions through troposphere creating loca…