What does the Modified Mercalli intensity scale measure?

The Modified Mercalli scale measures the earthquake’s effect on people, property and ground damage. Roman numerals are used to rate the intensity and damage. Damage is usually lessened with distance from the earthquake’s epicenter.

What is the Mercalli Intensity Scale based upon?

The Mercalli Scale: A Measure of Intensity It is determined from observations of an earthquake’s effects on people, structures, and the Earth’s surface. A 10-value scale which had been in use in Europe since 1883 was refined in 1902 by an Italian seismologist, Giuseppe Mercalli.

What information does the Modified Mercalli intensity scale provide about an earthquake?

What does the Modified Mercalli Intensity scale tell us about an earthquake? The Modified Mercalli Intensity scale uses California buildings as its standard to evaluate earthquakes intensity based on the amount of damage to various structures.

What are the Richter and Mercalli scales?

While the Mercalli scale describes the intensity of an earthquake based on its observed effects, the Richter scale describes the earthquake’s magnitude by measuring the seismic waves that cause the earthquake. The Mercalli scale is linear and the Richter scale is logarithmic. …

How earthquake intensity is measured using the Mercalli scale?

The Mercalli Intensity Scale measures the intensity of an earthquake by observing its effect on people, the environment and the earth’s surface. The Richter Scale measures the energy released by an earthquake using a seismograph.

How is the intensity for an area determined on the Modified Mercalli Intensity Scale?

The lower numbers of the intensity scale generally deal with the manner in which the earthquake is felt by people. The higher numbers of the scale are based on observed structural damage. Structural engineers usually contribute information for assigning intensity values of VIII or above.

How are the Richter scale and Modified Mercalli Scale different?

First, the Richter scale is a mathematical measurement of the intensity of the ground shaking, as measured on a seismograph. Second, the Modified Mercalli scales measures how people feel and react to the shaking of an earthquake.

What is difference between Richter scale and Modified Mercalli scale?

While the Mercalli scale describes the intensity of an earthquake based on its observed effects, the Richter scale describes the earthquake’s magnitude by measuring the seismic waves that cause the earthquake. The Mercalli scale is linear and the Richter scale is logarithmic.

What do Mercalli intensities enable us to infer quizlet?

Mercalli intensities enable us to infer the magnitude of historic earthquakes and allows us to estimate how deadly an earthquake was likely to have been moments after it occurs.

How is the Mercalli scale different from the Richter scale?

What is Mercalli scale in science?

Definition of Mercalli scale : a scale of earthquake intensity ranging from I for an earthquake detected only by seismographs to XII for one causing total destruction of all buildings.