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The seismic waves in a 6.1 magnitude earthquake are what times larger than those of a 3.1 magnitude earthquake?
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∙ 6y ago
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Wiley Waelchi
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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)
How many times more powerful is an earthquake measuring 7.0 than one measuring 5.0?
The Richter magniude scale is logorithmic. As such the size (amplitude) of the largest seismic waves produced by a magnitude 7 earthquake are 102 (or 100) times larger than those produced by a magnitude 5 earthquake. However the amount of energy released by a magnitude7 earthquake is 1000 times greater (102)^3/2 than a magnitude 5 earthquake and so it is likely to be much more destructive.
Why the Richter Scale is useful?
The Richter magnitude scale assigns a single number to quantify the amount of seismic energy released by an earthquake. An earthquake that measures 6 on the Richter scale is 10 times more powerful than one that measures 5.
Why is the intensity value of an earthquake more meaningful than magnitude to a nonscientist?
The strength (more correctly termed magnitude) of an earthquake is a measurement of the energy released when the earthquake occurs. The intensity however is derived based on the perceived level of ground shaking at a specific location and is a function of the amplitude of seismic waves at a given point and the damage they cause. The damage caused is in turn related to the local ground conditions and the specific construction techniques followed in the area. Therefore for earthquakes of equal magnitudes, the location of the earthquake's epicentre in relation to centres of population is important. A high magnitude earthquake that occurs far from a populated area will do less damage than an lower magnitude earthquake in very close proximity to a populated area. As such the earthquake would have a lower magnitude but a higher intensity. Secondly, ground motion and the amplitude of seismic waves is strongly dependent on the medium through which they travel. Seismic waves in hard rock masses (e.g. granite) have lower amplitudes than those that travel through soft ground such as sediments and so a building constructed and founded on hard rock is less likely to be damaged. As such a lower magnitude earthquake affecting structures founded on softer sediments may ultimately cause more damage than a higher magnitude earthquake affecting structures founded on hard rock. Again this would mean that in this specific case the earthquake of equal or lower magnitude would have a potentially greater effect on structures founded on soft soils and so the the intensity would be higher. For more information, please see the related question.
Who helped in the Newcastle earthquake?
The Newcastle earthquake was a Richter scale of 5.6 magnitude earthquake
The seismic waves in a 5.5 magnitude earthquake are times larger than those in a 3.5 magnitude earthquake?
100 :)
The seismic waves in a 6.1 magnitude earthquake are times larger than those in a 3.1 magnitude earthquake?
1,000
The seismic waves in a 6.1 magnitude earthquake are times larger than those in a 3.1 magnitude earthquake.?
1,000
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)
How many times more powerful is an earthquake measuring 7.0 than one measuring 5.0?
The Richter magniude scale is logorithmic. As such the size (amplitude) of the largest seismic waves produced by a magnitude 7 earthquake are 102 (or 100) times larger than those produced by a magnitude 5 earthquake. However the amount of energy released by a magnitude7 earthquake is 1000 times greater (102)^3/2 than a magnitude 5 earthquake and so it is likely to be much more destructive.
What scale is used to measure earthquake intensity?
The moment magnitude scale is used to measure the magnitude of large earthquakes. The Richter scale is still used to make an initial estimate of the magnitude of larger earthquakes and to measure small and moderate ones (those with a magnitude below 7).
How does the scale work?
The Richter scale (or local magnitude scale) indicate the energy released by a particular earthquake. The numerical value is obtained from the logarithm of the maximum amplitude of seismic waves as recorded on a seismometer. This value is then scaled to account for the distance from the epicentre of the earthquake to the seismometer so as to allow the value to be correlated with the local magnitude readings from other seismometers in differing locations (as seismic waves lose their energy as they propagate through the earth so if this correction was not made, then different seismometer stations at different distances would give differing Richter magnitudes for the same earthquake). It uses a logarithmic mathematical formula which is calibrated so that a ten fold increase in amplitude relates to a single whole number increase on the scale (e.g. an earthquake with a Richter magnitude of 5 has seismic waves with a maximum amplitude 10 times larger than those for a magnitude 4). The equation for calculating the Richter magnitude (MR) is shown below: MR = (Log10A) - (Log10A0) Where A = maximum zero to peak amplitude of seismic wave (mm) recorded. A0 = Empirical function derived from the distance from seismometer station to earthquake epicentre Log10A0 From 0 to 200 km distance: Log10A0 = 0.15 - 1.6 log(distance in km) Between 200 and 600 km distance by: Log10A0 = 3.38 - 3.0 log(distance in km)
What does a Richter scale measure on an earthquake?
RICHTER SCALEThe Richter scale (known as the local magnitude scale to seismologists) was originally developed to measure small to moderate magnitude earthquakes in southern California by Charles Richter and Beno Gutenberg. The numerical levels indicate the energy released by a particular quake. The numerical value is obtained from the logarithm of the maximum amplitude of seismic waves as recorded on a seismometer. This value is then scaled to account for the distance from the epicentre of the earthquake to the seismometer so as to allow the value to be correlated with the local magnitude readings from other seismometers in differing locations (as seismic waves lose their energy as they propagate through the earth so if this correction was not made, then different seismometer stations at different distances would give differing Richter magnitudes for the same earthquake). The Richter magnitude measurement produced by this methodology in theory has no limit and may be positive or negative.As stated above, the Richter scale itself is a logarithmic mathematical formula which is calibrated so that a ten fold increase in amplitude relates to a single whole number increase on the scale (e.g. an earthquake with a Richter magnitude of 5 has seismic waves with a maximum amplitude 10 times larger than those for a magnitude 4). It has a number of practical limitations, in that it is poor at recording earthquakes with magnitudes greater than 7 and at distances greater than 650 km from a seismometer.The equation for calculating the Richter magnitude (MR) is shown below:MR = (Log10A) - (Log10A0)WhereA = maximum zero to peak amplitude of seismic wave (mm) recorded.A0 = Empirical function derived from the distance from seismometer station to earthquake epicentreLog10A0 From 0 to 200 km distance:Log10A0 = 0.15 - 1.6 log(distance in km)Between 200 and 600 km distance by:Log10A0 = 3.38 - 3.0 log(distance in km)Due to the limitations described above (distance and maximum size of measurable earthquake), it has since been replaced by the Moment Magnitude Scale in the measurement of large earthquakes - for information on this, please see the related question.the richter scale reads the magnitude of earthquake.
Does the Richter scale work?
The Richter scale (or local magnitude scale) indicate the energy released by a particular earthquake. The numerical value is obtained from the logarithm of the maximum amplitude of seismic waves as recorded on a seismometer. This value is then scaled to account for the distance from the epicentre of the earthquake to the seismometer so as to allow the value to be correlated with the local magnitude readings from other seismometers in differing locations (as seismic waves lose their energy as they propagate through the earth so if this correction was not made, then different seismometer stations at different distances would give differing Richter magnitudes for the same earthquake). It uses a logarithmic mathematical formula which is calibrated so that a ten fold increase in amplitude relates to a single whole number increase on the scale (e.g. an earthquake with a Richter magnitude of 5 has seismic waves with a maximum amplitude 10 times larger than those for a magnitude 4). The equation for calculating the Richter magnitude (MR) is shown below: MR = (Log10A) - (Log10A0) Where A = maximum zero to peak amplitude of seismic wave (mm) recorded. A0 = Empirical function derived from the distance from seismometer station to earthquake epicentre Log10A0 From 0 to 200 km distance: Log10A0 = 0.15 - 1.6 log(distance in km) Between 200 and 600 km distance by: Log10A0 = 3.38 - 3.0 log(distance in km)
Why the Richter Scale is useful?
The Richter magnitude scale assigns a single number to quantify the amount of seismic energy released by an earthquake. An earthquake that measures 6 on the Richter scale is 10 times more powerful than one that measures 5.
Why is the intensity value of an earthquake more meaningful than magnitude to a nonscientist?
The strength (more correctly termed magnitude) of an earthquake is a measurement of the energy released when the earthquake occurs. The intensity however is derived based on the perceived level of ground shaking at a specific location and is a function of the amplitude of seismic waves at a given point and the damage they cause. The damage caused is in turn related to the local ground conditions and the specific construction techniques followed in the area. Therefore for earthquakes of equal magnitudes, the location of the earthquake's epicentre in relation to centres of population is important. A high magnitude earthquake that occurs far from a populated area will do less damage than an lower magnitude earthquake in very close proximity to a populated area. As such the earthquake would have a lower magnitude but a higher intensity. Secondly, ground motion and the amplitude of seismic waves is strongly dependent on the medium through which they travel. Seismic waves in hard rock masses (e.g. granite) have lower amplitudes than those that travel through soft ground such as sediments and so a building constructed and founded on hard rock is less likely to be damaged. As such a lower magnitude earthquake affecting structures founded on softer sediments may ultimately cause more damage than a higher magnitude earthquake affecting structures founded on hard rock. Again this would mean that in this specific case the earthquake of equal or lower magnitude would have a potentially greater effect on structures founded on soft soils and so the the intensity would be higher. For more information, please see the related question.
Who helped in the Newcastle earthquake?
The Newcastle earthquake was a Richter scale of 5.6 magnitude earthquake
