Download Diapositiva 1

Earthquakes
• Like volcanoes, earthquakes can change
the earth’s surface.
• An earthquake is a shaking or sliding parts
of the earth’s surface.
• The earth’s crust is like a jig-saw puzzle,
broken into many pieces called tectonic
plates.
• These tectonic plates are constantly
moving, but they move so slow that we
can’t feel it.
• At times the tectonic plates slide over one
another or hit into one another, causing
the earth to shake. This shaking is an
earthquake.
• Most earthquakes happen along faults. A
fault line is the place where two tectonic
plates meet.
• An earthquake’s shaking can make new
cracks appear on Earth’s surface. It can
also cause landslides.
• The epicenter is the place on Earth’s
surface above where the earthquake
begins. The closer you are to the
epicenter, the more you feel the
earthquake.
Cause and Effect
What causes an earthquake’s
vibrations?
• Earthquake’s vibrations happen when the
tectonic plates of the Earth move against
each other.
Compare and Contrast
Select two landforms.
What is alike and different about
them?
• Answers may vary.
Recall
How can forces beneath Earth’s
crust cause changes on Earth’s
surface?
• Forces beneath Earth’s crust can make
new cracks and can cause landslides on
Earth’s surface.
List
Investigate names of 3 different
landforms in Perú. Write them below.
Type of
Landform
Volcano
Name
El Misti,
Arequipa