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How do scientists measure the intensity and magnitude of an earthquake?
Wiki User
∙ 14y ago
The moment magnitude scale, which has generally replaced the Richter scale, uses the following equation:
Mw = (2/3) log10 (M0) - 10.7
Mw (mechanical work) is the magnitude, this is a dimensionless number.
M0 is the seismic moment in dyne centimeters.
it's simple. you use a seismograph. to explore the dimension of this instrumental physician. and then you extract the wood from the box
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe Mercalli intensity scale allocates a value to an earthquake based on the perceived shaking in a specific area as well as the damage to buildings and infrastructure that has occurred. The US Geological survey also use data based on the amplitudes of seismic waves and surface accelerations as measured on seismometers to quantify "perceived shaking"
Wiki User
∙ 13y agoSeismologists estimate earthquake intensity based on the reports of witnesses on the level of felt ground movement, on the amount of damage caused by an earthquake and also based on the ground accelerations as measured by seismometers.
Wiki User
∙ 12y agoAdd your answer:
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Why do scientists measure light intensity?
to know how is the light heavy
Why do scientists prefer the moment magnitude scale over the righter scale?
Richter scales are useful to measure only small, shallow earthquakes recorded within a certain distance from the epicenter. A moment magnitude scale is more precise than a Richter scale. It also gives a measure of the energy released during an earthquake.
The measure of a stars brightness is called its what?
Scientists actually use two measurements to identify a star's brightness. One is luminosity, or the energy that star puts out. Another is magnitude, or the amount of light a star puts out.
A decibel is a unit used to measure the?
decibels measure the intensity of sound.
Loudness and intensity compares and contrasts?
Loudness is the quality of a sound that is the primary psychological correlate of physical strength or amplitude. Loudness is a subjective felt impression and is in some way related to the objective measure of the sound pressure. Neither our ear drums nor the microphone diaphragms can convert acoustic intensity. Therefore only use the sound pressure for measuring. To measure the loudness feeling is a difficult thing.
What are the measure of the strength of an earthquake is called?
The Richter magnitude scale is used to measure the strength of an earthquake.
Does the Richter scale measure how deep an earthquake is?
No. The Richter's scale measures the magnitude or intensity of an earthquake on a scale up to ten.
What are devises used to know the intensity and magnitude of earthquake?
Those devices are called Seismometer's. They are used to measure seismic shockwaves ( earthquake's)
Difference between intensity and magnitude?
Magnitude is a measure of the energy released by the earthquake - it is an absolute value and does not vary with where it is measured. Intensity measures the strength of the shaking at a particular location and will vary with distance, substrate conditions and other factors. It is a subjective measure which depends on observation, not measurement. The reference below sets it all out for you.Is also an answer but here's another answer:This is my answer:D(Magnitude / Intensity Comparison)(Magnitude and Intensity measure different characteristics of earthquakes. Magnitude measures the energy released at the source of the earthquake. Magnitude is determined from measurements on seismographs while Intensity measures the strength of shaking produced by the earthquake at a certain location. Intensity is determined from effects on people, human structures, and the natural environment.)
Why is magnitude a better measure of strength of earthquakes than intensity?
The difference is that intensity is the extent of damage released by an earthquake and is measured differently at different places depending on its distance from the epicenter while the magnitude is the amount of energy released by an earthquake and it has a fixed energy as it is released by an earthquake.
Is the magnitude of an earthquake same as its intensity?
No.The magnitude is a measure of the total energy released by an earthquake.The intensity is a measure of the violence of ground shaking at a particular point. This is based on the statements of witnesses, damage to buildings and the ground acceleration as measured by a seismometer. As such it varies from place to place for a given earthquake.
What is an earthquake's magnitude a measure of?
An earthquake's magnitude is a measure of how strong it is
What does the intensity of an earthquake measure?
The amplitude and acceleration of ground shaking at a particular place as well as the resultant damage to buildings and other infrastructure. Unlike earthquake magnitude, the intensity can vary from place to place.
How do scientists measures earthquakes?
Scientists normally use something called the Richter scale to measure earthquakes. They measure in maginitude. 1 on the Richter scale would be small vibrations through the earthquake zone where as 10 would be total destruction. Hope that's helped!
What is magaitude?
You might mean Magnitude magnitude is the measure of energy released in an earthquake. it doesnt change per area like intensity, an earthquake has one magnitude. It may be expressed using several magnitude scales. It is very unlikely that an earthquake of magnitude less than 5 could cause any damage.
How is the intensity and magnitude of an earthquake measured?
Earthquakes are measure with a seismograph which indicates the intensity of earth crust´s movements this measurement is call Richter 1 being less intensity and 10 being major intensity.
What is the measure of an earthquake Stength?
The extent or size of an earthquake at a particular time is determined from the logarithm of the amplitude of waves that are recorded by a seismograph. The magnitude and intensity of the earthquake is measured on a Richter scale.
