Earthquake Monitoring and Effects

Earthquake Monitoring and Effects

Assessment

Interactive Video

Science, Geography

10th - 12th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video discusses the recent earthquake in the Orkney region, its causes, and impacts. Dr. Herman van Nicker explains the difference between earthquakes and tremors, attributing the event to stress in the Earth's crust, possibly linked to the East African Rift. The potential for aftershocks and their risks, especially to already damaged structures, is highlighted. The challenges in predicting earthquakes are explored, emphasizing the complexity of geological processes. The video also addresses the role of mining activities and acid mine drainage, clarifying that these are unlikely causes of such significant seismic events.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the epicenter of the earthquake discussed in the video?

Durban

Cape Town

Orkney

Johannesburg

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many people were injured in the Orkney-Clark's Dark area?

21

10

50

100

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main difference between an earthquake and a tremor?

Magnitude of the waves

Duration of the event

Location of the event

Cause of the waves

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What natural process is responsible for earthquakes?

Volcanic eruptions

Weather changes

Human activities

Plate tectonics

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the East African Rift Valley trying to do to the African continent?

Break it into two pieces

Elevate it

Merge it with another continent

Sink it

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are aftershocks a concern for already damaged buildings?

They can cause floods

They can cause fires

They can collapse further

They can attract wildlife

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it difficult to predict earthquakes?

Unpredictable weather

Lack of technology

Human interference

Complexity of stress in rocks

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