1st Quarter, Lesson 4: Earthquake

Question 1

What is the Strongest Earthquake?

Answer 1

The Great Chilean Earthquake with a magnitude of 9.5

Question 2

What is the Strongest Earthquake in the PH?

Answer 2

Moro Gulf Earthquake with a magnitude of 7.9

Question 3

What was the deadliest Earthquake in the PH?

Answer 3

Luzon Earthquake in 1990’s that lasted for 40 seconds

Question 4

This is the manifestation of released energy in deformed rocks.

Answer 4

Earthquake

Question 5

These are vibrations produced by the rapid release of energy.

Answer 5

Earthquake

Question 6

This is where the displacement of plates take place.

Answer 6

Focus or Hypercenter

Question 7

_____ propagates in any direction and travels far

Answer 7

Seismic Waves

Question 8

What is the Epicenter?

Answer 8

Point of the surface of where the Earthquake happened.

Question 9

What are the Depths of an Earthquake?

Answer 9

Shallow-Focus and Deep-Focus

Question 10

This depth is 0-70km

Answer 10

Shallow-Focus

Question 11

How may km deep is the Deep-Focus?

Answer 11

70-700km deep

Question 12

Why is Shallow-Focus much more dangerous than Deep-Focus?

Answer 12

It is much more dangerous because it is closer to the surface.

Question 13

This is fed by a region deep within Earth’s mantle from which heat rises through the process of Convection

Answer 13

Hotspot

Question 14

This is unique because it does not occur at the boundaries of Earth’s Tectonic Plates.

Answer 14

Hotspot Volcanism

Question 15

A Canadian geophysicist and one of the founders of the theory of Plate Tectonics

Answer 15

John Tuzo Wilson

Question 16

He explained hotspots when he proposed for the existence of roughly cylindrical convective upwellings in Earth’s mantle.

Answer 16

William Jason Morgan

Question 17

This is where most active volcanoes are found.

Answer 17

Hawaiian Islands

Question 18

It is a volcanic hotspot which currently lies under the island of reunion in the Indian Ocean.

Answer 18

Reunion hotspot