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EOSC - EQ Mitigation

Quiz by mskp
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Last updated: March 17, 2023
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First submittedMarch 17, 2023
Times taken2
Average score16.3%
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Hint
Answer
precursors to EQs (observed)
change in seismic activity
 
rapid ground deformation
 
water table changes
 
radon gas emissions
 
electromagnetic disturbances
 
animal behavior
does it work?
not really
forecasting
use past earthquakes
 
statistics
 
risk assessment
historical record - 1
oral histories
from ...
natives
2
sedimentary record
like ...
faulting
 
deposits
constrained by ...
carbon dating
3
geologic record
from ...
underwater landslide data
other forecasting
land changes
as in ...
deformations
 
geodynamic modelling
 
earthquake monitoring
Hint
Answer
 
seismic gaps
show ...
potential for earthquakes
 
earthquake early warning systems
forecasting time scale - immediate
good
 
expensive
hours to weeks
no
years (~10)
no but improving
years (10-30)
good for active faults
hundreds of years
excellent
types of earthquakes
subduction megathrust
 
crustal
 
deep
safety
earthquake kit
 
food
 
water
 
what could fall?
 
no kitchens
 
no doors
 
go under strong table
 
do not move
after
leave building
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