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How is the amount of energy release by an earthquake related to its magnitude?
Wiki User
∙ 8y ago
The moment magnitude scale (MW) provides an estimate of the total energy released in an earthquake.
It is calculated from the seismic moment (M0 - which has the unit of dynes/cm =where 1 dyne/cm = 1x10-7 N/m) and is derived based on the elastic moduli of the crust where the earthquake occurred, the length of the slip surface and the cross sectional area of the slip surface as follows:
M0 =G x AFx DF
Where:
G = Shear modulus of the rock mass
AF = Area of the rupture along the fault
DF = average displacement on AF
The seismic moment can in turn be converted into an estimated level of radiated seismic energy (ES) using the following equation:
ES = MO / 20,000
This gives a value in Ergs where 1 Erg = 1x10-7 Joules.
Please see the related questions for more information.
Dimitri Welch
Wiki User
∙ 7y agoThe magnitude is what tells geologists how much energy was released by the earthquake. Each one-point increase in magnitude represents the release of roughly 30 times as much energy as a magnitude 7 quake and about 1,000,000 times as much as a magnitude of 4 quake.
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How is the amount of energy released from an earthquake related to its magnitude?
Tttc
How is the magnitude of an earthquake related to its destructive effects?
Broadly speaking, the amount of damage an earthquake causes will increase as it's magnitude increases. For more information on this topic, please see the related questions.
Magnitude is an earthquake's what?
The magnitude of an earthquake is caluated to measure the amount of energy released during the earthquake.
What is an earthquake's magnitude a measure of?
An earthquake's magnitude is a measure of how strong it is
The amount of energey released by an earthquake?
That is the magnitude of the earthquake.
What does the magnitude of the earthquake have to do with?
The word Magnitude is used to described the amount of energy released when an Earthquake occurs
How is the amount of energy released related to its magnitude?
An increase of 1.0 on the magnitude scale equals 32 times the energy release. Therefore an increase of 2.0 would be 32x32, which is 1024 time the energy release. So a magnitude 7 earthquake releases 1024 times more energy than a magnitude 5.
What term means the measure of energy released by an earthquake?
The measure of energy released by an earthquake depends on its magnitude. If its a high magnitude earthquake, there is a lot of energy. If there is a low magnitude, then there is little energy.
What is measured by the amount of energy released by an earthquake?
Magnitude scales are measurements of the amount of energy released by an earthquake. Perhaps the most famous is the Richter magnitude scale although this has since been replaced by the moment magnitude scale. Please see the related questions for more information.
Can you explain how the transfer of energy as seismic waves is related to the frequency and magnitude of earthquake in a region?
They both based on the amount of energy that is released during earthquake
What is the amount of energy released by an earthquake called?
This is known as the magnitude of the earthquake.
Amount of energy released during an earthquake?
magnitude
