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Why does earthquake intensity vary at different locations from the same earthquake?
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What is used to find the intesity of earthquakes?
Earthquake intensity is measured on a scale called 'Mercalli Intensity Scale' or more recently 'Modified Mercalli Scale'. The scale quantifies the effects of an earthquake on the Earth's surface, humans, objects of nature, and man-made structures on a scale from I (not felt) to XII (total destruction). An earthquake is graded after collecting data from people who have experienced the earthquake and observing the destruction caused by the earthquake. People often confuse 'Intensity' of an earthquake with its 'magnitude.' An earthquake's magnitude is a measure of the energy released by an earthquake that propagates from it. It is measured by the Richter scale(formerly), or Moment Magnitude Scale. Information about the earthquake is put into an algorithm to assign the earthquake to a scale of 2 or less, to 10.0+ and anything in between. A magnitude of 2 or less is extremely weak, and may not have been felt at all. An earthquake with the magnitude of 10 is extremely massive and would cause mass destruction - there have not been any 10.0 earthquakes recorded yet. Magnitude and Intensity are correlated. Intensity depends on the magnitude, distance between focus and surface, and population density of the region etc. So, an earthquake with more magnitude will have more intensity, given all the conditions remain same. See the Related Links section below for the algorithm.
Different shape intensity from magnitude of an earthquake movements?
There are two ways of describing an earthquake;by intensity and by magnitude. When we talk of intensity, we are referring to the effects and damage produced by the earthquake. It is determined by going to all the areas affected by the earthquake and observing the damage, as well as recording the experiences of the people there. The first intensity scale was developed by Giuseppe Mercalli in 1902. This has since been improved by the use of strong motion seismometers which are able to measure ground accelerations and so produce a less subjective assessment of intensity. The value of intensity can vary from place to place. In the US the intensity of an earthquake is measured using the Modified Mercalli scale and in Europe the Macroseismic scale is used (which appears to be an updated version of the original Mercalli intensity scale). Earthquake magnitude on the other hand is a single value (it should be the same no matter where it is measured) and is based on the amount of seismic energy produced by an earthquake. It can be estimated from the amplitude of seismic waves recorded by a seismometer (and requires scaling to account for the distance of the recording station from the earthquakes epicentre) or directly based on the cross sectional area of the fault which moved, the average displacement and the shear modulus of the rockmass. In the past the Richter magnitude scale was commonly used however seismologists now use the Moment magnitude scale. I hope it would help you :)
The oceans saltiness is the same in all locations?
no as there is different volumes of water
How would a map showing the locations of active volcanoes compare to the map showing the location of earthquake epicenters?
(a) Only a small percentage of volcano locations would be in the same regions as the epicenters(b) A large percentage of volcano locations would be in the same regions as the epicenter(c) There would be no match between the locations of the volcanoes and the epicenters(d) The location of the volcanoes and the epicenters would only match in the ocean regions
What is the total intensity level of two sources in the same intensity level?
That gives 3 dB more total intensity level.
How can be determined the earthquake epicenter from seismic waves?
The simplified answer is that it works much in the same way you would determine the source of a sound (which is also in waves). Multiple measurements of the intensity are taken from different locations are used to triangulate an earthquake.
An earthquake will be given one number on the Richter scale but more than one on the mercalli scale why is this?
The Richter scale measures the strength of an earthquake, this is always the same value, no matter where you are. The Mercalli intensity scale measures the effect of the earthquake on people and structures, and the intensity value will differ depending on how far you are from the epicenter. For instance, a 5.5 magnitude earthquake may be damaging (intensity VII) around the epicenter, but 300 miles away it may be barely felt (intensity II).
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.
Two different files can have the same name if?
they are in different locations.
What is used to find the intesity of earthquakes?
Earthquake intensity is measured on a scale called 'Mercalli Intensity Scale' or more recently 'Modified Mercalli Scale'. The scale quantifies the effects of an earthquake on the Earth's surface, humans, objects of nature, and man-made structures on a scale from I (not felt) to XII (total destruction). An earthquake is graded after collecting data from people who have experienced the earthquake and observing the destruction caused by the earthquake. People often confuse 'Intensity' of an earthquake with its 'magnitude.' An earthquake's magnitude is a measure of the energy released by an earthquake that propagates from it. It is measured by the Richter scale(formerly), or Moment Magnitude Scale. Information about the earthquake is put into an algorithm to assign the earthquake to a scale of 2 or less, to 10.0+ and anything in between. A magnitude of 2 or less is extremely weak, and may not have been felt at all. An earthquake with the magnitude of 10 is extremely massive and would cause mass destruction - there have not been any 10.0 earthquakes recorded yet. Magnitude and Intensity are correlated. Intensity depends on the magnitude, distance between focus and surface, and population density of the region etc. So, an earthquake with more magnitude will have more intensity, given all the conditions remain same. See the Related Links section below for the algorithm.
Different shape intensity from magnitude of an earthquake movements?
There are two ways of describing an earthquake;by intensity and by magnitude. When we talk of intensity, we are referring to the effects and damage produced by the earthquake. It is determined by going to all the areas affected by the earthquake and observing the damage, as well as recording the experiences of the people there. The first intensity scale was developed by Giuseppe Mercalli in 1902. This has since been improved by the use of strong motion seismometers which are able to measure ground accelerations and so produce a less subjective assessment of intensity. The value of intensity can vary from place to place. In the US the intensity of an earthquake is measured using the Modified Mercalli scale and in Europe the Macroseismic scale is used (which appears to be an updated version of the original Mercalli intensity scale). Earthquake magnitude on the other hand is a single value (it should be the same no matter where it is measured) and is based on the amount of seismic energy produced by an earthquake. It can be estimated from the amplitude of seismic waves recorded by a seismometer (and requires scaling to account for the distance of the recording station from the earthquakes epicentre) or directly based on the cross sectional area of the fault which moved, the average displacement and the shear modulus of the rockmass. In the past the Richter magnitude scale was commonly used however seismologists now use the Moment magnitude scale. I hope it would help you :)
Are black and white opposite colours?
no there are same color, but the different between them is the intensity of light
Can 2 different people in different locations be charged with possession of the same drug?
yes
How is magnitude and intensity scale in earthquakes different?
Magnitude regards the size of the event of phenomena, whereas intensity refers to amounts over time. Intensity is akin to frequency. For example when measuring earthquakes, Richter scale gauges its force through magnitude, and its intensity is frequency of resonation felt.
What instrument measures the intensity of an earthquake?
Strong-motion seismometers (which are also known as Accelerographs) are used to measure the intensity of earthquakes. It should be noted that intensity is different from magnitude and is measured using a differing scale (Moddified Mercalli or Macroseismic scale for intensity vs Moment Magnitude scale for earthquake magnitudes.)Seismometers / accelerometers measure the intensity of earthquakes.Seismometers - instruments that measure motions of the ground.The visual output, either on a monitor or on paper is called a seismographSeismometers are in part used to measure the intensity of earthquakes. The scale used to measure earthquake intensity is known as the Modified Mercalli scale. A variation of this is used in Europe and is known as the Macroseismic scale.Earthquakes are measured with a seismometer.Seismometers and accelerometers are used to measure the acceleration of the ground surface and the total amplitude of seismic waves during an earthquake.These values are used by seismologists to find the intensity of the earthquake (along with observations of the damage done to structures).Earthquakes are measured using machines called SEISMOMETERS which record the shaking as waves on a graph .The magnitude of most earthquakes is measured on the Richter scale, invented by Charles F. Richter in 1934. The Richter magnitude is calculated from the amplitude of the largest seismic wave recorded for the earthquake, no matter what type of wave was the strongest.
What is multiple stores?
Same store at different locations Example: MacD
The oceans saltiness is the same in all locations?
no as there is different volumes of water
