Please enable JavaScript.
Coggle requires JavaScript to display documents.
Factors affecting geophysical hazards - Coggle Diagram
Factors affecting geophysical hazards
magnitude
stronger the earthquake, more damage it does
population density
high population inflict more damage, ig urban area compared to suburbs or rural with low population
type of building
HIC better quality building, earthquake resistant
and more likely to have insurance, so recovery is easier
distance from geophysical hazard
closer to the surface more damage than deep underground earthquakes
as energy isn't absorbed by overlined rocks
type of rocks and sediments
loose materials = liquid when shaken, liquefaction
solid rock, is safer and more resistant
unconsolidated volcanic sediment = high risk of landslide
secondary hazards
cause more fatalities than orginal event
tsunami, fire, contaminated water, disease, hypothermia, hunger.
time of day
earthquake during a busy time, more deaths.
economic development
HIC better level or preparedness and more effective emergency respond
more funds to cope with disaster
