The moment magnitude scale is used by seismologists to express the sizes of earthquakes. The scale is
Question:
The moment magnitude scale is used by seismologists to express the sizes of earthquakes.
The scale is calculated using the formula
where S is the seismic moment in dyne cm.
a. Find the magnitude of an earthquake with a seismic moment of 2.24 × 1022 dyne cm.
b. Find the seismic moment of an earthquake with
i. Magnitude 6
ii. Magnitude 7
c. Using your answers to part b or otherwise, show that an earthquake of magnitude 7 is approximately 32 times as powerful as an earthquake of magnitude 6.
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a To find the magnitude of an earthquake with a seismic moment of 224 1022 dyne cm we can use the gi...View the full answer
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Related Book For 
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
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