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a lot of earthquakes happen in the world
every year. Why do earthquakes happen
Scientists tell us the outside of the earth is made of
a number of different plates. The plates move very
slowly. Sometimes they stop and don t move for a
long time. When some of the earth,s plates move
suddenly, an earthquake happens.
Many earthquakes happen under the sea
Sometimes they happen near mountains. In fact
earthquakes may happen anywhere on the earth
during an earthquake, the shakings make
rocks rise suddenly and even break open. houses
fall. People are killed or hurt. Sometimes whole
villages or cities are destroyed
Can we do something to keep ourselves safe
from earthquakes Scientists have studied
earthquakes and made maps that show earthquake
belts". In the areas in these belts, it's possible for
earthquakes to happen in these areas we can make
houses strong enough to stand against
earthe
quakes.
In the future, scientists will be able to predict
(预言) exactly when and where an earthquake will
happen. They can tell us what to do and how to do
t as well