Exercise
Earthquake Microseisms and Detection Technology
Questions
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MultiChoice
What are seismic microseisms?
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MultiChoice
Which technology measures slow surface ground movement along faults from space?
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MultiChoice
What sensor measures acceleration of ground motion during intense shaking?
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MultiChoice
Why are real-time seismic networks used worldwide?
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MultiChoice
What oceanic system detects pressure changes on the sea floor to warn of tsunamis?
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MultiChoice
Why can smartphone alerts give people seconds of warning before shaking arrives?
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MultiChoice
Which instruments placed deep in drilled holes record subtle seismic activity away from surface noise?
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MultiChoice
What instrument measures minute stretching or squeezing of rock near active faults?
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MultiChoice
Which device measures tiny changes in the slope or angle of Earth's surface near faults?
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MultiChoice
Which modern technology converts existing underground telecommunication cables into seismic sensors?
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MultiChoice
What automatic USGS product generates ground motion severity maps minutes after an earthquake?
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MultiChoice
What measurement metric quantifies maximum ground acceleration during shaking for building codes?