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Questions and Answers
What is a key difference between a hazard and a disaster?
What defines a disaster?
Which of the following is NOT a type of natural disaster?
Which of these is an example of a man-made disaster?
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What best describes hydro-meteorological hazards?
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Which term describes a disaster caused by human activities?
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What is more likely to cause a serious impact in densely populated areas?
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Which of the following is characterized as a primary disaster?
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What best represents a hazard as opposed to a disaster?
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Which of the following is considered a secondary disaster?
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Study Notes
Introduction to Disasters
- Disasters are sudden events causing significant loss of life and property, often classified as calamities.
- Natural disasters arise from natural processes (e.g., earthquakes, floods) while man-made disasters stem from human activities (e.g., wars, industrial accidents).
Types of Disasters
- Natural Disasters: Result from natural events and include earthquakes, floods, and droughts.
- Man-made Disasters: Caused by human actions, involving wars, fire accidents, and industrial mishaps.
- Primary Disasters: Initial events causing immediate damage.
- Secondary Disasters: Resulting disruptions following the primary disaster.
Hazard vs. Disaster
- Hazards are potential threats, while disasters are significant events impacting communities severely.
- Disasters are more likely in densely populated areas and have serious impacts compared to potential hazards.
Hydro-Meteorological Hazards
- These include atmospheric, hydrological, or oceanographic phenomena causing significant disruption, such as:
- Tropical Cyclones (Typhoons): Intense low-pressure systems with high winds and heavy rains.
- Thunderstorms: Characterized by lightning, thunder, and heavy rainfall.
- Tornadoes: Violently rotating columns of air extending from thunderstorms.
- Floods: Inundation of land due to rising waters, with flash floods occurring rapidly within hours.
Characteristics of Specific Hazards
- Storm Surge: Rise in seawater levels caused by cyclonic winds.
- El Niño & La Niña: Oscillations affecting global weather patterns, varying in temperature and frequency.
Preparedness and Mitigation Strategies
- Essential for managing the impacts of natural hazards, including:
- Assembling emergency kits with essentials.
- Developing family emergency plans with evacuation routes.
- Staying informed through weather forecasts.
- Engaging in community awareness and drills.
Human-Induced Disasters
- Include oil spills, pandemics, and conflicts, often resulting from human error or intent.
Earthquakes
- Caused by the sudden release of energy in the Earth, leading to violent surface shaking.
- Possible causes include natural tectonic activities, volcanic actions, machinery, and mining blasts.
- Impacts include loss of life, damage to properties, and disruptions to economic activities.
Tsunamis
- A series of waves caused by the displacement of water, often following underwater earthquakes.
- Distinct from tidal waves (gravitational effects) and storm surges (caused by strong winds).
- Signs of approaching tsunamis can include tremors felt near water bodies, prompting immediate evacuation.
Tsunami Mitigation
- Involves public awareness, early warning installations, community evacuation plans, and protective structures to minimize impact.
Relationship Between Earthquakes and Tsunamis
- Earthquakes can trigger tsunamis, especially those occurring under or near large bodies of water, underscoring the need for awareness and preparedness in affected coastal areas.
Introduction to Disasters
- Disasters are sudden events causing significant loss of life and property, often classified as calamities.
- Natural disasters arise from natural processes (e.g., earthquakes, floods) while man-made disasters stem from human activities (e.g., wars, industrial accidents).
Types of Disasters
- Natural Disasters: Result from natural events and include earthquakes, floods, and droughts.
- Man-made Disasters: Caused by human actions, involving wars, fire accidents, and industrial mishaps.
- Primary Disasters: Initial events causing immediate damage.
- Secondary Disasters: Resulting disruptions following the primary disaster.
Hazard vs. Disaster
- Hazards are potential threats, while disasters are significant events impacting communities severely.
- Disasters are more likely in densely populated areas and have serious impacts compared to potential hazards.
Hydro-Meteorological Hazards
- These include atmospheric, hydrological, or oceanographic phenomena causing significant disruption, such as:
- Tropical Cyclones (Typhoons): Intense low-pressure systems with high winds and heavy rains.
- Thunderstorms: Characterized by lightning, thunder, and heavy rainfall.
- Tornadoes: Violently rotating columns of air extending from thunderstorms.
- Floods: Inundation of land due to rising waters, with flash floods occurring rapidly within hours.
Characteristics of Specific Hazards
- Storm Surge: Rise in seawater levels caused by cyclonic winds.
- El Niño & La Niña: Oscillations affecting global weather patterns, varying in temperature and frequency.
Preparedness and Mitigation Strategies
- Essential for managing the impacts of natural hazards, including:
- Assembling emergency kits with essentials.
- Developing family emergency plans with evacuation routes.
- Staying informed through weather forecasts.
- Engaging in community awareness and drills.
Human-Induced Disasters
- Include oil spills, pandemics, and conflicts, often resulting from human error or intent.
Earthquakes
- Caused by the sudden release of energy in the Earth, leading to violent surface shaking.
- Possible causes include natural tectonic activities, volcanic actions, machinery, and mining blasts.
- Impacts include loss of life, damage to properties, and disruptions to economic activities.
Tsunamis
- A series of waves caused by the displacement of water, often following underwater earthquakes.
- Distinct from tidal waves (gravitational effects) and storm surges (caused by strong winds).
- Signs of approaching tsunamis can include tremors felt near water bodies, prompting immediate evacuation.
Tsunami Mitigation
- Involves public awareness, early warning installations, community evacuation plans, and protective structures to minimize impact.
Relationship Between Earthquakes and Tsunamis
- Earthquakes can trigger tsunamis, especially those occurring under or near large bodies of water, underscoring the need for awareness and preparedness in affected coastal areas.
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Description
This quiz explores various types of disasters that affect the Philippines, including hydro-meteorological hazards, earthquakes, tsunamis, and terrorism-related incidents. Gain insights into disaster management and consequences associated with these events. Test your knowledge on the impacts and response strategies for each disaster type.