Disaster Risk Reduction (DRR) is the systematic approach to avoiding or minimizing disasters.
The Sendai Framework for Disaster Risk Reduction was adopted by UN member states in March 2015, replacing the Hyogo Framework for Action.
The four priorities of DRR are understanding disaster risk; strengthening disaster risk governance; investing in disaster reduction for resilience; and enhancing preparedness for response and recovery from disasters.
Natural hazards include earthquakes, volcanic eruptions, typhoons/hurricanes, floods, landslides, tsunamis, wildfires, and extreme temperatures.
Economic losses due to natural disasters have increased over time, with the most expensive being Hurricane Katrina in 2005 at $161 billion.
Development aid aims to reduce poverty and promote sustainable development through economic growth, education, healthcare, infrastructure, and social services.
DISASTER RISK - The probability that a hazard would hit a
vulnerable community would result in loss of
lives and physical damage.
Natural Process that Shape and Change Environment.
Plate tectonics – leading to mountain building, volcanism, ocean formation, etc.
Globalwarming leads to rising sea levels, melting glaciers, more frequent and intense heatwaves, storms, droughts, and wildfires.
Natural Process that Shape and Change the Environment.
Atmosphericprocesses – formation of clouds, precipitation, wind, etc
Natural Process.
Biological accumulation – reef building, colony formation, forestation, etc.
Natural Process.
Humanactivities – urbanization, extracting resources, geoengineering, etc.
Disaster - a serious disruption of the functioning of a community or a society involving widespread
human, material, economic, or environmental
losses and impacts which exceeds the ability
of the affected community or society to cope
using its own resource
Ring of Fire - is a string of volcanoes and sights of seismic
activity, or earthquakes, around the edges of
the Pacific Ocean.
- Roughly 90% of all earthquakes occur along
the Ring of fire, and the ring is dotted with
75% of all active volcanoes on Earth.
There is no such thing as a ‘naturaldisaster’, only “natural hazards”.
Disaster Risk Reduction aims to ‘reduce the damage’ caused by natural hazards like earthquakes, floods, droughts, and cyclones, through an ethic
prevention.
Natural Hazards - naturally occurring physical phenomena
caused either by rapid or slow onset events.
BiologicalHazard - process or phenomenon of organic origin or
conveyed by biological vectors/agents,
including exposure to pathogenic
microorganisms, toxins, and bioactive
substances
GeologicalHazard - geological process or phenomenon - natural process, originates from the solid
earth-geosphere.
Hydrometeorological Hazard - “hydro” means water while “meteoros” means sky.
- process or phenomenon of atmospheric,
hydrological or oceanographic nature.
TechnologicalHazard - manmade event resulting from human activities
- industrial accidents, nuclear disasters, oil spills, etc.
Hydrological Hazard - hydrometeorological processes
- water cycle, precipitation, runoff, river flow, etc.
Volcanic Eruption - eruption of lava, ash, gases, and rock fragments from a volcano.
Earthquake - sudden shaking of the ground due to movement within the earth’s crust.
- earthquakes are usually accompanied by secondary effects such as landslides, tsunamis, liquefaction, fires, and building collapses.
EconomicHazard - economic conditions that can lead to disaster.
- unemployment, inflation, debt crisis, etc.
Social Hazard - social conditions that can lead to disaster.
- poverty, inequality, marginalization, conflict, etc.
EnvironmentalHazard - environmental factors that affect health.
- air pollution, noise pollution, chemical pollutants, radiation, etc.
Geophysical Hazards - natural phenomena associated with the Earth's structure and its interaction with space
Biological Hazard - biological agents or organisms that pose a threat to health.
- epidemics, pandemics, vector-borne diseases, etc.
Tsunami - large waves generated by an underwater disturbance such as an earthquake, volcanic eruption, or submarine landslide.
Geophysical Hazards - natural phenomena caused by physical forces acting on the Earth's surface
Lahar - mudflow composed mainly of pyroclastic material (ash) mixed with water
Tsunami - large wave generated by an abrupt displacement of water caused by earthquake, volcanic activity, submarine landslide, meteorite impact, or other disturbances.
Biological Hazard - biological agents (bacteria, viruses, parasites) that cause disease.
- epidemics, pandemics, etc.
Earthquakes - sudden shaking of the ground caused by movement along fault lines within the earth's crust
Landslides - downward movement of soil, rock, or debris along a slope due to gravity.