0
Where are the intensity values of an earthquake usually higher?
Wiki User
∙ 13y ago
Assuming all other properties are equal, the intensity of an earthquake is highest at it's epicentre and decreases with increasing distance from this point.
In reality however the Earth's surface and subsurface is highly heterogeneous (in other words it is very variable - there are lots of differing types of soils and rocks with varying strengths and other physical properties). The amplitude of seismic waves (how strongly they shake the surface) is in turn strongly affected by the type of material through which they travel. For example the amplitude of seismic waves will be much higher in soft sediments such as soils than in hard rock masses such as granites.
Because of this earthquake intensities may be highest in areas with "poor" ground conditions (such as the soft soils described above) even if they are a greater distance from the earthquake's epicentre.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is earthquake intensity?
Earthquake intensity is measured using the modified Mercalli scale or the macroseismic scale. Their values are derived based on eye witness accounts of the violence of the shaking of the ground, the damage done to buildings and other structures and based on ground surface accelerations measured by seismometers.
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 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.
Why might an earth quake have more than one intensity value?
Yes. 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). The mercalli scale measures the intensity of an earthquake, where the Richter scale measures the magnitude. Also you have to consider where the earthquake occurred. you can have a 9.0 quake in the middle of the Australian outback but there is hardly anybody there so you would have a low mercalli scale reading. If you had that same quake in San Francisco then you are going to have a seriously high number on the mercalli scale
What is true of isolines on a weather map?
All isolines, or iso-intensity lines, connect points having equal values. Weather maps generally contain isobars, lines that connect points with equal barometeric pressure
Where are intensity values of an earthquake usually hightset?
The epicenter
Where are intensity values of an earthquake usually highest?
The epicenter
Why would an earthquake have several different intensity values?
well i think its based on a sacle from 1083 to 22222
What is earthquake intensity?
Earthquake intensity is measured using the modified Mercalli scale or the macroseismic scale. Their values are derived based on eye witness accounts of the violence of the shaking of the ground, the damage done to buildings and other structures and based on ground surface accelerations measured by seismometers.
Where are intensity values of an earthquake usually higher?
Assuming all other properties are equal, the intensity of an earthquake is highest at it's epicentre and decreases with increasing distance from this point. In reality however the Earth's surface and subsurface is highly heterogeneous (in other words it is very variable - there are lots of differing types of soils and rocks with varying strengths and other physical properties). The amplitude of seismic waves (how strongly they shake the surface) is in turn strongly affected by the type of material through which they travel. For example the amplitude of seismic waves will be much higher in soft sediments such as soils than in hard rock masses such as granites. Because of this earthquake intensities may be highest in areas with "poor" ground conditions (such as the soft soils described above) even if they are a greater distance from the earthquake's epicentre.
How do you measure the damage caused by an earthquake?
Geologists and seismologists will usually describe the damage caused by an earthquake in terms of it's intensity. This is measured using the Modified Mercalli intensity scale. Mercalli values are derived from a number of sources including witness reports of the perceived ground shaking in their location, the damage to structures and also measurements of the ground accelerations from seismometers (included to attempt to reduce the subjectivity of the scale due to it's reliance on human witnesses).Earthquake damage may also be measured in terms of their monetary effect - i.e. the financial cost to replace or repair the damaged infrastructure. For example the February 2010 Chilean earthquake is estimated to have caused $30 billion of damage.
What instrument is used to measure the intensity of a earth quake?
Earthquake intensity is recorded on the Modified Mercalli or the Macroseismic scale. These values are derived based on witness reports as to the perceived level of ground shaking as well as damage to buildings and other structures and ground accelerations as measured by seismometers.
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 instrument measure the intensity of earthquakes?
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.
Why is it that earthquakes can have Many intensity values even though it only has one magnitude?
Many things can affect the intensity or the earth quake ⚡️💦
When was Society for Values in Higher Education created?
Society for Values in Higher Education was created in 1922.
What is the equation for decibels solved for intensity?
10log10 (p1 /p0 ) where the pi are power values.
