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EOSC - Tsunamis

Quiz by mskp
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Last updated: February 26, 2023
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First submittedFebruary 26, 2023
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Hint
Answer
tsunami def
fast changes in lots of water
caused by
huge jolt of energy
from 1
earthquakes
but you need ...
plate moving over or under
 
vertically
tsunami is possible if ...
seafloor breaks
2
volcanic eruptions
which ...
dump mass into ocean
3
landslides
4
meteor impacts
5
icebergs
energy released from vertical earthquake
flows away radially
 
moves as a wave train
which is a burst of ...
localized wave action
 
disturbs entire water column
meaning they are what kind of waves?
shallow water
wavelength
200000-400000 m
period
10-60 min
height
0.5-1 m
steepness
1/200000
approach shoreline
speed decreases
 
height increases
different from wind driven waves
doesn't break
Hint
Answer
longer
period
 
wavelength
faster
in ocean
particle motion is ...
not circular
destruction from
advance and retreat of water
tsunamis and basins
can be worse
if ...
wave period
is a ...
multiple of resonant period
where are tsunamis?
ring of fire
cascadia average EQ time
430 years
what do we use to warn us?
tsunami warming center
 
tide gauges
 
DART Buoy System
planning level in Vancouver
2
how to survive
run
notice ...
earthquake
 
receding water
move ...
boats to ocean
 
to high ground
 
inland
 
to an upper floor
 
up a tree
leave ...
belongings
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