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Questions and Answers
What year were the first seismographs installed in the United States?
What year were the first seismographs installed in the United States?
1887
Who invented the seismometer in 132 AD?
Who invented the seismometer in 132 AD?
Zhang Heng
How many U.S states have experienced earthquakes since the 1900's?
How many U.S states have experienced earthquakes since the 1900's?
39
How do geologists identify fault lines on a geologic map?
How do geologists identify fault lines on a geologic map?
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What is the purpose of placing seismographs on bedrock?
What is the purpose of placing seismographs on bedrock?
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What did Alfred Wegener propose in his theory of continental drift?
What did Alfred Wegener propose in his theory of continental drift?
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What evidence did Alfred Wegener use to support his theory of continental drift?
What evidence did Alfred Wegener use to support his theory of continental drift?
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Who is credited with creating the modern seismograph?
Who is credited with creating the modern seismograph?
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When and where were the first seismographs installed in the United States?
When and where were the first seismographs installed in the United States?
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What factors do earth scientists use to classify faults?
What factors do earth scientists use to classify faults?
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