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Earthquakes
An earthquake occurs when two chunks of earth
suddenly move against one another.
Tectonic Plates
The crust of the earth is made up of giant tectonic
plates that are constantly in movement and brush
against one another.
Fault
the surface where two blocks of earth slip against each other
Hypocenter
area below the earth’s surface where an earthquake starts
Epicenter
the area directly above the hypocenter on the earth’s surface
Impact of
Earthquakes
Shaking
Earthquakes can trigger landslides and
avalanches.
Buildings can be destroyed by various types of
movement caused by earthquakes.
Impact of
Earthquakes
Liquefaction
Loose soil is turned into liquid mud and produces
sinkholes where structures can fall into the ground
Impact of
Earthquakes
Aftershocks
Earthquakes that follow a larger earthquake in the
same area
Aftershocks can cause buildings damaged by
earthquakes to collapse
Impact of
Earthquakes
Tsunamis
Earthquakes that happen on the ocean floor create
waves of displaced water.
When tsunamis near the shoreline, waves grow in
size and become mountainous.