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Hazard Identification

There are several natural hazards present in coastal areas. Earthquakes can cause dams to rupture and flood areas, damaging buildings. Tsunamis, caused by undersea earthquakes, are huge waves that can flood coastlines and knock over trees. Storms and typhoons bring strong winds that can down trees and power lines, remove roofs, and cause flooding. Floods from tsunamis, storms or other sources can carry debris and pollutants, endangering people and causing health issues. Coastal erosion gradually wears away coastal land due to wave impacts.

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59 views1 page

Hazard Identification

There are several natural hazards present in coastal areas. Earthquakes can cause dams to rupture and flood areas, damaging buildings. Tsunamis, caused by undersea earthquakes, are huge waves that can flood coastlines and knock over trees. Storms and typhoons bring strong winds that can down trees and power lines, remove roofs, and cause flooding. Floods from tsunamis, storms or other sources can carry debris and pollutants, endangering people and causing health issues. Coastal erosion gradually wears away coastal land due to wave impacts.

Uploaded by

Cj
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Hazard Identification
there are many hazards present in the coastal area:
Earthquake- In a coastal area, an earthquake can rupture (break) dams along a river. The water
from the river or the reservoir could then flood the area, damaging buildings and maybe
sweeping away or drowning people.
*reservoir- a large natural or artificial lake used as a source of water supply.
Tsunami- is a huge wave caused by an earthquake under the ocean. Tsunamis can be tens of feet
high when they hit the shore and can do enormous damage to the coastline. Tsunamis can flood
down houses, and tip over trees which could also cause casualties.
Storms and typhoons- are associated with damaging winds that can bring down trees, branches,
power lines, remove roofs and blow around outdoor items. Storms and typhoons could also be
associated with heavy rains that can cause flooding of homes and property within the vicinity.
Floods- floods can be caused by tsunami, storms and typhoons. Humans can get caught in the
high velocity flood waters and can drown in the water. Floodwaters can also concentrate garbage,
debris, and toxic pollutants that can cause the secondary effects of health hazards.
Corrosion- occurs when the sea's pH level (anything below pH 7.0) corrodes rocks on a cliff
face. Corrosion becomes a hazard when it causes structures such as bridges, infrastructures and
foundations to weaken. It becomes a threat if it shows possibility of structures to collapse and
cause damage to its surroundings.
Soil Composition and Depth- soil composition and depth must be critically take into
consideration because if structure is built on a poor soil, specifically soft soil, it would possibly
cause disaster if the building design is poorly executed which can cause collapsing of structures.
Coastal erosion- Coastal erosion is a natural process that means the wearing away of coastal
land or beaches mainly caused by the impact of waves along the shoreline. (Waves, generated by
storms, wind, cause coastal erosion)

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