NATURAL DISASTERS: Risk reduction and management

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Natural Disasters

are adverse events that result from natural processes of earth such as typhoons, floods, earthquakes, landslides, volcano eruptions, storm surges, tsunamis, and other geologic processes.

El Niño

Phenomenon caused by warm ocean surface water temperature that develops in the central and east-central equatorial pacific; severe drought

La Niña

The ocean surface water temperature cools and causes intense rainfall and floods; Intense rainfall/ flooding

Typhoon

tropical cyclone

Storm surge

Abnormal increase of water level in seashores when a storm nears coastal lines

strong winds brought by low pressure

Causes of storm surge

Flooding

caused by a strong typhoon, sudden and intense rain, or heavy and prolonged rainfall. overflowing and clogging of canals, river and various waterways

Strong Typhoons

Cause of flashfloods

Landslides

occurs when there is heavy and continuous rainfall in high places, volcanic eruptions, or earthquakes.

Volcanic eruptions

occurs when material is expelled from a volcanic vent or fissure.

Earthquake

is a sudden, rapid shaking of the earth caused by the breaking and shifting of rock beneath the earth’s surface

Geohazards

naturally occurring geological pheonomena that pose danger to people’s lives, properties, infrastrusture, and communities.

The Department of Environment and Natural Resources(DENR)

They made geohazard maps to indicate which areas are prone to natural danger or natural disasters.

Camiguin and Sulu

Two provinces that are at high risk to volcanic eruption

because it is a small island

Why does Camiguin have the highest risk at volcanic eruption?

Sulu

most number of active volcanoes in its area

Tsunami

series of enormous seismic sea waves caused by underwater earthquake, landslide, or volcani eruption.