0
This is known as seismic moment (M0 - which has the unit of dynes/cm =where 1 dyne/cm = 1x10-7 N/m) which is a measure of the total energy released during an earthquake 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
For an explanation of how this value is used to determine an earthquakes magnitude, please see the related question.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoMagnitude
Add your answer:
Earn +20 pts
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 earthquake magnitude and how is it measured?
magnitudea measure of the amount of the energy released by earthquake . earthquake is measure through Ricthter scale that measure the magnitude of seismic waves that it has
What do values on the Richter scale express?
The Richter scale expresses the relative magnitude of an earthquake, which is a measure of the energy released at the focus of an earthquake.
What system do geologists use today for rating the magnitude of an earthquake?
They use the Richter scale to measure magnitude and Moment Measure to measure energy released.
How is an earthquake magnitude scale related to the amounts of energy released by earthquaiew?
The larger the magnitude of the earthquake, the larger the energy to be released by the earthquake.
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
What is magnitude and how is it measured?
magnitudea measure of the amount of the energy released by earthquake . earthquake is measure through Ricthter scale that measure the magnitude of seismic waves that it has
What is a sentence with magnitude?
The magnitude of an earthquake is a measure of the energy that is released by the event.
What are the goals of correlation?
to measure the amount of energy released during an earthquake
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 does the moment magnitude scale measure?
the moment magnitude scale rates an earthquake by estimating the total energy released during an earthquake
What is earthquake magnitude and how is it measured?
magnitudea measure of the amount of the energy released by earthquake . earthquake is measure through Ricthter scale that measure the magnitude of seismic waves that it has
What do values on the Richter scale express?
The Richter scale expresses the relative magnitude of an earthquake, which is a measure of the energy released at the focus of an earthquake.
What is the scale used to measure the amount of sesmic energy released by an earthquake called?
Richter scale.
What system do geologists use today for rating the magnitude of an earthquake?
They use the Richter scale to measure magnitude and Moment Measure to measure energy released.
What is the difference between a 5.0 earthquake and a 6.0 earthquake?
The earthquake magnitude is a measure of the energy released during an earthquake. The scale is logarithmic, such that a magnitude of 6.0 releases about 32 times more energy than a magnitude 5.0 earthquake, and in turn more than 900 times more energy than a magnitude 4.0 earthquake.
