A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of
4.9 cross product 102
µm. Find this earthquake's magnitude. (Round your answer to one decimal place.)
What determines the magnitude of an earthquake? I know that two plates slide against one another and that creates friction and the potential energy turns into kinetic energy in the form of an earthquake. But how is the magnitude determined? Im thinking the longing the 2 plates are locked, the more potential energy is created = larger earthquake. Not 100% sure. Thanks in advance! :)
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