Natural Hazards and Disasters

GLOBALNatural Hazards and

Disasters

Natural Hazards and Disasters

• A natural hazard is a natural event that has the potential to harm people and their property.

• A natural disaster is the realization and impacts of a natural hazard, (deaths, injuries, disruption and damage.)

WHAT DO WE KNOW?

• Some natural hazards will cause a major disaster when then occur.  

GLOBAL NATURAL HAZARDS• FLOODS• SEVERE

WINDSTORMS• EARTHQUAKES• TSUNAMIS• DROUGHTS• VOLCANIC

ERUPTIONS• LANDSLIDES• WILDFIRES

PACIFIC RING OF FIRE HAZARDS

PACIFIC RING OF FIRE HAZARDS

• SEVERE WINDSTORMS

• FLOODS• EARTHQUAKES• TSUNAMIS• VOLCANIC

ERUPTIONS

• SEVERE WINDSTORMS

• FLOODS• EARTHQUAKES• TSUNAMIS• VOLCANIC

ERUPTIONS

ASIA’S HAZARDS: CHINA ASIA’S HAZARDS: CHINA

• FLOODS• EARTHQUAKES• TYPHOONS• ERUPTIONS• LANDSLIDES• DROUGHTS• ENVIRONMENTAL

IMPACTS

• FLOODS• EARTHQUAKES• TYPHOONS• ERUPTIONS• LANDSLIDES• DROUGHTS• ENVIRONMENTAL

IMPACTS

ASIA’S HAZARDS: INDIA ASIA’S HAZARDS: INDIA

• FLOODS• EARTHQUAKES• CYCLONES• LANDSLIDES• DROUGHTS

• FLOODS• EARTHQUAKES• CYCLONES• LANDSLIDES• DROUGHTS

ASIA’S HAZARDS: JAPAN ASIA’S HAZARDS: JAPAN

• FLOODS• EARTHQUAKES• TSUNAMIS• TYPHOONS• VOLCANIC ERUPTIONS• LANDSLIDES• DROUGHTS

• FLOODS• EARTHQUAKES• TSUNAMIS• TYPHOONS• VOLCANIC ERUPTIONS• LANDSLIDES• DROUGHTS

Dregg’s model of a natural disaster

LIVING WITH NATURAL HAZARDS

INCREASED DEMANDS ON COMMUNITY

INCREASED DEMANDS ON COMMUNITY

A DISASTER:

INSUFFICIENT CAPABILITIES OF

COMMUNITY

INSUFFICIENT CAPABILITIES OF

COMMUNITY

LIVING WITH NATURAL HAZARDS

DEMANDS ON COMMUNITY

DEMANDS ON COMMUNITY

NO DISASTERS:

CAPABILITIES OF COMMUNITY

CAPABILITIES OF COMMUNITY

Risk

The probability of harmful consequences, or expected losses, resulting from interactions between natural or human-induced hazards and vulnerable conditions.

Hazard

A potentially damaging physical event

Vulnerability

The conditions determined by factors which increase the impact of hazards.

Capacity to cope

A combination of all the strengths and resources available that can reduce the level of risk, or the effects

R = risk, H = frequency or magnitude of hazard, V = vulnerability level, C = capacity to cope