An earthquake was measured by a seismograph 180 kilometers from the epicenter that recorded a maximum of 0.5 µm. Find the magnitude of the earthquake.
An earthquake was measured by a seismograph 180 kilometers from the epicenter that recorded a maximum of 0.5 µm. Find the magnitude of the earthquake.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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An earthquake was measured by a seismograph 180 kilometers from the epicenter that recorded a maximum of 0.5 µm. Find the magnitude of the earthquake.
![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7727d9c6-dfb9-40b7-aba6-1b64379faeb7%2F43f46a66-b811-4c1f-b1f6-a29d1c1757ae%2Feriagn_processed.png&w=3840&q=75)
Transcribed Image Text: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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