Exercise
Form 4: Measuring and Detecting Earthquakes
Examine how scientists detect and measure earthquake activity using specialized scientific tools and scales.
Questions
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MultiChoice
Which instrument is used to detect and record earthquake waves?
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MultiChoice
What term refers to the amount of energy released by an earthquake?
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WordsBox
A ____ is the written record of ground shaking produced by a ____
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MultiChoice
Which scale is commonly used today by scientists to measure earthquake magnitude?
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MultiChoice
Which scale measures the amount of visible damage caused by an earthquake?
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WordsBox
An earthquake with a high ____ releases much more ____ than a low magnitude tremor.
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MultiChoice
How does strong earthquake shaking appear on a seismogram?
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MultiChoice
Can scientists accurately predict the exact time an earthquake will strike?
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WordsBox
Detecting fast ____ gives early warning seconds before slow, damaging ____ reach a city.
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MultiChoice
At least how many seismograph stations are needed to locate an epicenter?
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MultiChoice
What is the method called that uses three stations to pinpoint an earthquake?
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WordsBox
Scientists track historical ____ along fault lines to build risk ____ for future earthquakes.