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Vocabulary 1
Vocab 2
Earthquake
Tsunami
100
A break in the rocks where the plates have moved
Fault
100
A massive wave caused by an earthquake
Tsunami
100
What is an earthquake?
the shaking caused by two plates bumping into each other
100
What is a tsunami?
A giant wave created by an earthquake.
200
The powerful waves that cause the most damage and are the slowest
Surface Waves
200
the shaking caused by two plates bumping into each other
Earthquake
200
How do we know when tsunamis happen?
Tracking, buoys, seismographs, etc
200
Why do tsunami waves get bigger when they reach shallow water?
The wave doesn't fit so it rises and slows down.
300
A tool used to measure the strength of an earthquake
Seismograph
300
The first small waves felt from an earthquake
P-Waves
300
Do earthquakes happen only in oceans? Why or why not?
No plate tectonics are through land as well.
300
How are tsunamis created?
An earthquake pushes up the water and the wave goes out in a circle.
400
scale from 1 to 10 used to rate the strength of an earthquake
Richter Scale
400
The secondary waves that move underground
S-waves
400
What is a seismologist?
A person who studies earthquakes.
400
What happened when the tsunami hit Japan?
killed people, demolished cars, buildings, and boats.
500
spot where the earthquake starts
Focus
500
the point on earth’s surface directly above the focus
Epicenter
500

The Richter Scale is used to measure the ___ of an earthquake

magnitude

500

An Earthquake in City A registers 5.6, City B 7.8, and City C 6.8. Which city had the strongest earthquake?

City B