5 Questions
What is the immediate cause of an earthquake?
The movement of tectonic plates
What does the term 'epicenter' refer to?
The point on the Earth's surface directly above the focus
What is measured by the amount of energy released by an earthquake from its focus?
The magnitude of the earthquake
What is a fault?
A break in the ground caused by the pressure of moving rocks
What is the term for the point of origin of an earthquake?
Focus
Study Notes
Earthquake Structure
- The Earth's structure consists of the Crust, Mantle, and Core.
What Causes Earthquakes
- Earthquakes occur when two tectonic plates move suddenly against each other.
- They can also be triggered by strong volcanic eruptions.
Earthquake Components
- Focus: The point inside the Earth where an earthquake occurs.
- Epicenter: The point on the Earth's surface directly above the focus.
Measuring Earthquakes
- Magnitude: Refers to the amount of energy released by an earthquake from its focus.
- Intensity: Measures the amount of damage an earthquake causes on the surface.
Faults and Earthquakes
- A Fault is a break in the ground caused by the pressure of moving rocks.
- Earthquakes occur when there is a sudden movement along a fault.
This quiz covers the basics of earthquakes, including their causes, types, and effects. It also delves into related concepts like epicenters, foci, and the measurement of earthquake damage.
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