4. • Identify the three different types of
faults;
• Describe the movement that occurs in
each type of fault; and
• Explain how movement along faults
generate earthquake.
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5. Five deadliest tremors in Philippine
Earthquake History
BOHOL EARTHQUAKE (2013)
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6. Five deadliest tremors in Philippines
Earthquake History
MINDORO EARTHQUAKE (1994)
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7. Five deadliest tremors in Philippines
Earthquake History
LUZON EARTHQUAKE (1990)
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8. Five deadliest tremors in Philippines
Earthquake History
MORO GULF EARTHQUAKE (1976)
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9. Five deadliest tremors in Philippines
Earthquake History
CASIGURAN EARTHQUAKE (1968)
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11. What is an Earthquake?
Is a sudden shaking of the ground caused by a sudden slip on
a fault.
Energy from the earth’s interior makes the ground move.
Friction holds the rocks together but when there is so much
stress, the friction is overcome, and there is a sudden move in
the ground that causes an earthquake.
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12. Two types of earthquakes
1.Tectonic Earthquakes- are produced by sudden
movement along faults and plate boundaries.
2.Volcanic Earthquakes- Earthquakes induced by rising
lava or magma beneath active volcanoes
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14. WHY DO GEOLOGISTS CANNOT YET
PREDICT EARTHQUAKES?
Geologists don’t have enough understanding about the
condition at the depths where quake starts and
spreads.
They cant be sure when and where stress will be
released along a fault.
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16. SUMMARY
An earthquake is caused when rocks suddenly move in the
earth’s crust. The tectonic plates are always slowly moving, but
they get stuck at their edges. When they get stuck, they build up
a huge amount of energy. Then they move suddenly, releasing
this energy in waves that travel through the earth’s crust and
cause the shaking that we feel.
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20. A fault is a break in the Earth’s
crust, and along the break, NO
movement has taken place.
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21. Energy form inside the Earth
exerts a force on the rocks.
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22. When a portion of the land
sinks, a mountain is formed.
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23. ACTIVITY #2: How Well Do You Know Me?
DIRECTION: WRITE YOUR ANSWER IN A ½ SHEET OF
PAPER.
1.What is earthquake?
2.How do earthquakes occur?
3.Can we predict earthquakes? Why or why not?
4.Can people cause earthquakes? Why or why not?
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24. SHORT QUIZ
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Answer at the back of your ½ sheet of paper.
1.Is a sudden shaking of the ground caused by a
sudden slip on a fault.
a.Earthquake
b.Faults
c. Waves
d.Friction
25. SHORT QUIZ
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2. It holds the rocks together but when there is
so much stress there is a sudden shaking on
the ground that causes earthquake.
a.Earthquake
b.Faults
c.Waves
d.Friction
26. SHORT QUIZ
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3. A fracture in the rocks that make up the
earth’s crust.
a.Earthquake
b.Faults
c.Waves
d.Friction
27. SHORT QUIZ
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4. Which of the following can be triggered by an
earthquake?
a.Intense ground shaking
b.Landslide
c. Tsunami
d.All of the above
28. SHORT QUIZ
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5. Why do geologists cannot yet predict
earthquakes?
a.There are too many faults to monitor.
b.They can’t be sure when and where stress will be
released along a fault.
c. They need to know where all past earthquakes
occurred.
d.They have too much data.
30. ASSIGNMENT
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Let us sum up what you have learned in this
lesson through a journal. Write your learnings on
your notebook.
I have learned that…____________________
I realized that…________________________
I concluded that…______________________
31. v
“Now every time I witness a strong
person. I want to know what darkness
did you conquer in your story?
Mountains do not rise without
earthquakes”
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