Land slides, Volcanoes, Earthquakes and Tsunamis — Flashcards

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A natural hazard is a dangerous physical condition or event that has the potential to cause harm to life, property, or the environment. Examples include earthquakes, floods, volcanic eruptions, and la…

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A hazard is a potential threat (like an earthquake), while a disaster occurs when that hazard causes widespread loss of life, property, and disrupts society beyond its coping capacity. For example, an…

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The five types are: (1) Geological (e.g., earthquakes, landslides), (2) Hydrological (e.g., floods, tsunamis), (3) Meteorological (e.g., cyclones, heatwaves), (4) Climatological (e.g., droughts, glaci…

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Vulnerability refers to the extent to which people or communities are exposed and likely to be harmed by a hazard. It depends on physical (location), social (awareness), economic (resources), and envi…

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India is divided into four seismic zones: Zone II (least active), Zone III, Zone IV, and Zone V (most active). Zone V includes northeast India, Jammu & Kashmir, Himachal Pradesh, Uttarakhand, Gujarat,…

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Main causes include: (1) Tectonic plate movements, (2) Volcanic eruptions, (3) Fault zone activities, and (4) Human-induced activities like mining or reservoir-induced seismicity. Most earthquakes occ…

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Two immediate effects are: (1) Ground shaking, which can damage buildings and infrastructure, and (2) Structural collapse, leading to loss of life and property. Other effects include landslides, fires…

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Delhi lies in Zone IV because it is located near the Himalayan seismic belt, where tectonic plates are active. Historical records show moderate to strong earthquakes in the region, making it prone to …