Transcript Ch. 5 - Power Point Review

Answer – must in Q form – V holds the final right for the answer
Lets get
Earthquakes
Shake
Rattle
Roll
ready to
rumble
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1 5pt
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Most earthquakes happen at the edges of
2
What are tectonic plates?
3
Waves that stretch rock sideways are
called
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What are S waves?
5
The waves that often travel ahead of other
waves are
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What are P waves?
7
The instrument used to record
earthquakes is an)
____________________.
8
What is seismograph?
9
Name & describe a method to that
is used to pinpoint where an
earthquake has taking place?
10
What is the S-P time method
1. Collect several seismograms (example 3 stations)
2. Place seismograms on a time distance chart
3. Line up seismogram (P & S waves on time
distance curve)
4. Determine seismographs distance to Primary wave – draw
circle around stations
5. Where all three circles met is the epicenter
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During an earthquake, people inside
buildings should…
12
What is getting under a
strong piece of furniture?
13
Strike-slip faults are created by
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What is transform motion?
15
A measure of how likely an area
is to experience an earthquake is its
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What is a earthquake-hazard level?
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The waves of energy from
earthquakes that travel through
Earth are called
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What are seismic
waves?
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The epicenter of an
earthquake is the point on
Earth’s surface
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What is directly above
the earthquake’s
focus?
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A break in Earth’s crust along which
blocks of crust slide
relative to one another is
22
What is a fault?
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What is the simplest method used
to find an earthquake’s epicenter?
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What is the S-P time method?
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How much more ground motion
does an earthquake
with a magnitude of 7.0 have than
one with a magnitude of 3.0?
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What is 10*10*10*10
or
10 to the fourth power
(104)
or
10,000 times
more ground motion?
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When should you return to your
home after an earthquake?
28
What is someone in
authority tells you to?
29
Name three of the five methods
that can be used to either retrofit
or build a building that
is earthquake resistance
30
What are
Mass damper
Active tendon system
Base isolator
Steel cross braces
Flexible pipes?
31
What kind of deformation
leads to earthquakes?
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What is elastic deformation?
33
P waves and S waves
are types of ____________________.
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What are body waves?
35
Name the two types of
deformation that stress out rocks
36
What are plastic & elastic ?
37
The gap hypothesis says
that earthquakes are more
likely to occur along a
____________________
than in any other areas.
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What is a seismic gaps
39
The point at which an earthquake
begins is
called the ____________________,
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What is the focus?
41
What is the
measurement of the
strength of an
earthquake called?
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What is magnitude?
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What is the theory that active faults
with few earthquakes in the past will have
strong ones in the future?
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What is the
gap
hypothesis?
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What is the degree to which people feel
an earthquake and how much damage it
causes called?
46
What is
intensity?
47
Which seismic waves do the greatest
damage?
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What are surface waves?
49
Name the three different types of
faults & then describe the plate
motion with each one
50
What are
Strike Slip Fault = transform boundary
– plates slip past each other
Reverse Fault = Convergent boundary –
plates are pushed together
Normal Fault = Divergent boundary –
plates move away from each other
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