effects of seismic events Flashcards
1
Q
what are the primary effects?
A
ground shaking
ground rupturing
2
Q
the severity of ground shaking depends of what?
A
depth of focus
distance of epicentre
3
Q
what is ground rupturing?
A
when the earths surface displaces or breaks
4
Q
who does ground rupturing pose problems for?
A
big engineering structure such as nuclear gas and dams
5
Q
what are the secondary effects?
A
tsunamis effects of people landslides and avalanches fires soil liquefaction
6
Q
what is soil liquefaction
A
when soils high in water lose their mechanical strength
and start to flow like water
7
Q
how do landslides occur?
A
due to slope failure
8
Q
how do fires occur?
A
the breaking of gas pipes, electrical lines etc
9
Q
how do tsunamis occur?
A
underwater earthquakes with shallow focuses
