Question 1

What is an earthquake?

Accepted Answer

Weak to violent shaking of the underground due to movement of rock materials

Answer

Rising of the earth’s surface due to volcanic activity

Answer

A large flood caused by heavy rains

Answer

Sudden movement of ocean water

Question 2

What is the hypocenter (focus) of an earthquake?

Accepted Answer

The point inside the earth where the earthquake originates

Answer

The epicenter of a tsunami

Answer

The area where earthquakes never occur

Answer

The point on the surface above the earthquake

Question 3

What is the epicenter of an earthquake?

Accepted Answer

The point on the surface directly above the focus

Answer

The point inside the earth where the earthquake starts

Answer

A location with the strongest volcanic activity

Answer

A fault that cannot produce earthquakes

Question 4

What does earthquake magnitude measure?

Accepted Answer

Energy released at the focus

Answer

Speed of tectonic plate movement

Answer

Depth of the ocean during tsunami

Answer

How people feel the shaking

Question 5

What does earthquake intensity measure?

Accepted Answer

Strength of shaking as perceived by people in an area

Answer

Magnitude of volcanic eruptions

Answer

Depth of the hypocenter

Answer

Energy released at the focus

Question 6

Which of the following is a tectonic earthquake caused by?

Accepted Answer

Plate tectonics

Answer

Rising lava

Answer

Human activities

Answer

Chemical explosions

Question 7

Which type of earthquake is usually associated with active volcanoes?

Accepted Answer

Volcanic earthquake

Answer

Collapse earthquake

Answer

Tectonic earthquake

Answer

Human-induced earthquake

Question 8

What is a human-induced earthquake?

Accepted Answer

Earthquake caused by human activities like tunnel construction or reservoir filling

Answer

Earthquake caused by rising magma

Answer

Earthquake caused by ocean waves

Answer

Earthquake caused by tectonic plates

Question 9

Which phenomenon refers to the irregular movement of the ground during an earthquake?

Accepted Answer

Ground shaking

Answer

Tsunami

Answer

Foreshocks

Answer

Subsidence

Question 10

What is liquefaction during an earthquake?

Accepted Answer

Sediments behaving like a liquid, causing structures to tilt or sink

Answer

Gradual sinking of the Earth’s surface

Answer

Waves generated in the ocean

Answer

Collapse of underground mines

Question 11

What is ground rupture?

Accepted Answer

Deformation of the ground marking the fault intersection with the surface

Answer

Small foreshocks before a major earthquake

Answer

Gradual settling of the Earth’s surface

Answer

Movement of ocean waves during tsunami

Question 12

Earthquake-induced landslides are caused by:

Accepted Answer

Strong ground shaking

Answer

Flooding

Answer

Volcano eruptions

Answer

Tsunami waves

Question 13

What is subsidence?

Accepted Answer

Gradual settling or sudden sinking of the Earth’s surface

Answer

Sudden rise of water in wells

Answer

Formation of cracks in buildings

Answer

Movement of tectonic plates

Question 14

What natural disaster can result from an undersea earthquake?

Accepted Answer

Tsunami

Answer

Landslide

Answer

Earthquake-induced collapse

Answer

Volcanic eruption

Question 15

Which of the following is a possible sign that an earthquake is about to happen?

Accepted Answer

Foreshocks or minor shocks

Answer

Strong wind without rain

Answer

Sudden drop in air temperature only

Answer

Constant sunlight

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