Find how much more earth movement is caused by an earthquake of magnitude 6.9 than by an earthquake of magnitude 6.4. A1Formulas: M = log A – log AoM1 – M2 = log ()log E - 11.8 + 1.45MA2Richter's Standard Earthquakedistance (km)log of amplitude -1.7 -2.8 -3.0 -3.2 -3.4 -3.6 -3.8 -4.0 -4.22060100 140180 220 260 300 340D = 10 logIoIo = 10-16 watts/cm?10 logI2стD1 – D2

Magnitude of 1st earthquake = 6.4Magnitude of 2nd earthquake = 6.9To determine : Amount by which…

Answered: Find how much more earth movement is…

Engineering

Civil Engineering

Find how much more earth movement is caused by an earthquake of magnitude 6.9 than by an earthquake of magnitude 6.4.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

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Find how much more earth movement is caused by an earthquake of magnitude 6.9 than by an earthquake of magnitude 6.4.

A1
Formulas: M = log A – log Ao
M1 – M2 = log ()
log E - 11.8 + 1.45M
A2
Richter's Standard Earthquake
distance (km)
log of amplitude -1.7 -2.8 -3.0 -3.2 -3.4 -3.6 -3.8 -4.0 -4.2
20
60
100 140
180 220 260 300 340
D = 10 log
Io
Io = 10-16 watts/cm?
10 log
I2
ст
D1 – D2

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