Table of Contents
What is an earthquake-prone area?
Tectonic plate movements are the primary cause of earthquakes. Volcanic eruptions can also trigger earthquakes but are often, in turn, caused by tectonic activity. Not every country in the world is susceptible to earthquakes. The world’s most earthquake-prone countries include China, Indonesia, Iran, and Turkey.
Why do we need to have the knowledge about earthquake hazard map?
Such maps are often used to prepare for earthquakes, notably in developing codes for earthquake-resistant construction. These are not earthquake predictions, but hazard forecasts — an important distinction, because predicting exactly where and when earthquakes will happen is impossible, at least at present.
Why Philippine is prone to earthquake?
The Philippines lies along the Pacific Ring of Fire, which causes the country to have frequent seismic and volcanic activity. Many earthquakes of smaller magnitude occur very regularly due to the meeting of major tectonic plates in the region.
Where do earthquakes occur most often Why?
Over 80 per cent of large earthquakes occur around the edges of the Pacific Ocean, an area known as the ‘Ring of Fire’; this where the Pacific plate is being subducted beneath the surrounding plates. The Ring of Fire is the most seismically and volcanically active zone in the world.
Why is it important to understand hazard maps?
Hazard maps provide important information to help people understand the risks of natural hazards and to help mitigate disasters. Hazard maps indicate the extent of expected risk areas, and can be combined with disaster management information such as evacuation sites, evacuation routes, and so forth.
Why is it important to identify areas which are prone to tropical cyclones and floods?
The Philippines is prone to tropical cyclones due to its geographical location which generally produce heavy rains and flooding of large areas and also strong winds which result in heavy casualties to human life and destructions to crops and properties.
Why the Philippines is considered prone to natural hazards?
The Philippines is one of the most natural hazard-prone countries in the world. The social and economic cost of natural disasters in the country is increasing due to population growth, change in land-use patterns, migration, unplanned urbanization, environmental degradation and global climate change.
What is the importance of community risk map?
Risk maps help you to understand the hazards and risks in your community and encourage everyone in the community to take action to prevent a possible disaster or reduce its effects if it happens. For example, they show schools or other important buildings that are in high-risk area for landslides.
What is the purpose of risk identification?
The objective of risk identification is to identify all possible risks, not to eliminate risks from consideration or to develop solutions for mitigating risks—those functions are carried out during the risk assessment and risk mitigation steps.