DRR Flashcards
-sudden calamitous event; brings damage, loss, destruction/devastation to life; is sudden/ progressive
-exceeds the ability of the affected area to cope with their resources
Disaster
-the probability of a community’s structure to be damaged by a disaster
Disaster risk
state of the elements at risk
Exposure
7 Elements Exposed to Hazards:
1.Humans
2.Dwellings
3.Structures
4.Public facilities
5.Public transport system
6.Agricultural Commodities
7.Environmental assets
-characteristics/ circumstances of a community susceptible to hazards
Vulnerability
from forces of nature type of disaster
Natural Disaster
from human actions of disaster
Human made disaster
4 factors of vulnerability
1.Demographic
2.Socio-economic
3.Environmental
4.Physical
sudden movement of ground; release of elastic energy stored in rocks
Earthquake
where the faulting begins; hypocenter
Focus
above the focus
Epicenter
-zone of fracture between blocks or rock
Fault
where tectonic plates meet; boundaries that generate large earthquake and tsunamis
Subduction Zone
-response of material to the arrival of energy released by rapture
Seismic Waves
energy released; measured by a seismograph
Magnitude
strength of the earthquake felt by people in the area
Intensity
records seismic waves/seismogram
Seismograph
mountains that have the capacity to erupt any time
Volcanoes
Chain of Volcanoes
Arc
5 Factors of Disaster Risk
1.Severity of Exposure
2.Gender & Family
3.Age
4.Developing Countries
5.Low Social Support
4 Effects on Human Life
1.Displacement of population
2.Health risk
3.Food scarcity
4.Emotional aftershocks
6 Disaster from Different Perspectives
1.Physical
2.Psychological
3.Socio-cultural
4.Economic
5.Political
6.Environment
4 psychological disaster from different perspectives
1.Emotional effects
2,Cognitive effects
3.Physical effects
4.interpersonal effects
vibration of ground
-triggers liquefaction and landslide (Primary Earthquake Hazard)
Ground Shaking
wide range of ground movements
-triggers rock falls
(Primary Earthquake Hazard)
Landslide
ground becomes soft; occurs when soil and groundwater mix
(Primary Earthquake Hazards)
Liquefaction
esults when fault rapture extends to surface
( Primary Earthquake Hazards)
Surface Rupture
Apart of body waves. fastest; travel through all states of matter
-material movement in same direction as wave movement
Primary Body Waves
Apart of Body waves. slower; only travels through solids
-shear waves; material movement perpendicular to wave movement
Secondary Body Waves
(Secondary Earthquake Hazards.)
-originates under the ocean; can either be:
locally-generated
-from nearby trenches
far-field
-from sources far from the impact
Tsunami
wave in an enclosed body of water ( Secondary Earthquake Hazard)
Seiche
-water that remains from a tsunami ( Secondary Earthquake Hazard)
Flooding / Flood
It can be defined as a hazardous area where ____ will start or where smokes or gasses can be generated, or where an explosion can occur endangering the lives of people. ( Secondary Earthquake Hazard)
Fire
defined as “the characteristics and circumstances of a community, system or asset that make it susceptible to the damaging effects of a hazard.”
Vulnerability liwat :)))
moves in longitudinal and transverse motion
( Surface waves )
Rayleigh Waves
slower; only travels through solids
-shear waves; material movement perpendicular to wave movement
Secondary
