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WorksheetsEarthquakes!!!
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
The outside layer of the earth is called ______________________.
a)
core
b)
crust
c)
mantle
d)
outer core
2.
The huge pieces of the earth's crust are called ____________________________.
a)
crust
b)
plates
c)
directions
d)
seismos
3.
The epicenter of an earthquake is
a)
The point below the surface where rock begins to break and the first motion occurs
b)
The seismic station closest to the earthquake
c)
The place where the greatest damage occurs
d)
The point on the surface directly above the focus
4.
Waves move out through the ground from the ..........
a)
rift
b)
hypocenter
c)
epicenter
d)
fault line
5.
This famous transform fault is located in the western United States creates significant earthquake activity for California
a)
New Madrid
b)
Denali Fault
c)
Ramapo Seismic Zone
d)
San Andreas
6.
The Richter scale measures:
a)
the amount of radon gas released
b)
the movement of plates
c)
the strength of an earthquake
d)
the weight of tectonic plates
7.
The Modified Mercalli scale rates the amount of damage from an earthquake
a)
true
b)
false
8.
Which travels fastest, always being the first detected by seismic stations?
a)
P waves
b)
S waves
9.
What do S (secondary) waves do during an earthquake?
a)
Shake the ground
b)
Cause eruptions
c)
Open cracks in the earth's surface
d)
Create loud noises
10.
An earthquake scored high on the Richter scale but low on the Mercalli scale. Why?
a)
it probably happened in an area with no people
b)
it was a fast earthquake
c)
because it damaged a lot
d)
impossible to tell
11.
Liquefaction is when...
a)
the soil behaves like liquid
b)
the ground becomes liquid
c)
magma rises to the surface
d)
buildings are damaged, crumbling like liquid
12.
Which of the following amplifies the S waves during an earthquake?
a)
Soft underlying soil
b)
Strong rocks underground
c)
Closeness to a volcano
d)
Altitude of the epicentre
13.
An instrument that detects and measures earthquakes is a
a)
seismogram
b)
focus seismic map
c)
focus
d)
seismograph
14.
Which animals can tell when an earthquake is about to happen?
a)
Spiders
b)
Snakes
c)
Cats
d)
Elephants
15.
How much bigger is a magnitude 8 earthquake compared to magnitude 7 one on the Richter Scale?
a)
1 time bigger
b)
10 times bigger
c)
100 times bigger
d)
1000 times bigger
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