DRRR

Hazard

Threat or harm that has potential to cause damage.

Disaster

Event that causes widespread losses or impacts.

Disaster risk

Tendency of a community to face a disaster.

Natural disaster

Devastating outcomes that result from natural hazards.

Man-made disaster

Also called technical hazard, disaster from man-made hazards.

Effects of Disaster

Mostly depend on the severity of the exposure of life.

Primary Effects

Direct situations arising from the disaster itself.

Tertiary effects

Effects felt some time after a disaster has occurred.

People, buildings and infrastructure, economy, environment

Affected components

Physical Perspective

Includes visible and tangible materials.

Psychological Perspective

Emotional, cognitive, or interpersonal reactions to difficulties.

Sociocultural Perspective

Response of people to emergency situations.

Economic Perspective

Disruption of economic activities in the community.

Political Perspective

How government services are used to reduce loss or damage.

Biological Perspective

Focuses on how biological factors affect human health.

Exposure

Being open to contact, influence, or harm from external factors.

Vulnerability

Quality or state of being exposed to the possibility of being attacked or harmed.

Proximity to a hazard event

Area frequented by a certain hazard predisposes it to high vulnerability.

Population Density near a hazard event

Measures how many people live in a specific area of land.

Capacity and efficiency to reduce disaster risk

Accessibility and availability of services and facilities that help prepare.

Building codes and disaster policies

Design and construction of buildings should be considered.

Hydrometeorological Hazard

Natural hazards caused by atmospheric, meteorological, oceanographic factors.

Geological hazard

Hazard caused by crust movement.

Environmental Hazard

Caused by changes in the environment that can pose damage to people.

Accident-related hazard

Hazard brought by an unintentional event that leads to loss of life or property.

Philippines

Earthquakes happen more frequently here because of its geographical location.

Pacific ring of fire

Area where the majority of earthquakes happen.

Divergent boundary

Where two plates move away from each other, creating small volcanoes and earthquakes.

Convergent boundary

Plates move together, causing huge volcanoes and earthquakes.

Transform boundary

Plates move past each other, causing large impacting earthquakes.

Seismic waves

Form of energy that travels through different layers of the earth caused by vibration and movement.

Ground shaking

The shaking of the ground caused by the passage of seismic waves.

Ground rupture

Ground movement on a fault line that breaks through the surface.

Zones of weakness

Fault rupture follows pre-existing faults.

Liquefaction

When seismic shaking causes loose materials in the soil to mix with groundwater, making the ground like quicksand.

Earthquake-induced ground subsidence

Lowering of ground due to various causes.

Tsunami

Series of waves generated by a sudden displacement on the ocean floor.

Harbor wave

English term for tsunami.

Earthquake-induced landslide

Occurs during or after an earthquake when a weakened section of land falls due to gravity.

Seismometer

Instrument used to measure movements on the earth's surface.