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Understanding the Richter Scale for Earthquakes

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Understanding the Richter Scale for Earthquakes

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Questions and Answers

Who invented the Richter Scale?

Isaac Newton

Beno Gutenburg

Charles Richter (correct)

Albert Einstein

What does the Richter Scale measure?

The earthquake's duration

The earthquake's intensity (correct)

Amount of destruction caused by an earthquake

Distance the earthquake travels

Where did Charles Richter study before inventing the Richter Scale?

Stanford University

California Institute of Technology (correct)

Harvard University

Oxford University

What area were earthquakes in originally focused on when developing the Richter Scale?

Southern California Signup and view all the answers

What is the main limitation of the Richter Scale according to the text?

It cannot measure seismic activity accurately in all regions. Signup and view all the answers

What is Charles Richter's background before becoming involved in seismology?

Physics Signup and view all the answers

How does the Richter Scale differ from measuring the amount of destruction caused by an earthquake?

It assesses the intensity of ground shaking and energy released. Signup and view all the answers

What is the primary purpose of the Richter scale?

To measure the magnitude of small to moderate earthquakes Signup and view all the answers

How does the Richter scale measure the magnitude of an earthquake?

By measuring the amplitude of the largest seismic wave Signup and view all the answers

What is the relationship between the magnitude increase on the Richter scale and the intensity of ground shaking?

The ground shaking intensity increases by 10 times with each unit increase in magnitude Signup and view all the answers

What is the primary limitation of the Richter scale?

It cannot accurately measure earthquakes with magnitudes above 6.5 Signup and view all the answers

What is the seismic moment used in the moment magnitude scale?

The force multiplied by the displacement of the fault across the entire area Signup and view all the answers

Why was the moment magnitude scale developed?

To accurately measure large, destructive earthquakes with magnitudes above 8 Signup and view all the answers

What is the primary factor that affects the accuracy of the Richter scale measurement?

The proximity of the seismograph to the earthquake Signup and view all the answers

What is the difference in energy release between an earthquake with a magnitude of 4 and an earthquake with a magnitude of 8 on the Richter scale?

The magnitude 8 earthquake releases 1,048,576 times more energy Signup and view all the answers