what is the name of the scale that is used to describe the amount of damage an earthquake causes?

Question

homework help

And its not a richter or however you spell it.

Answer 1

The Richter scale was created in 1935 by the American seismologist Charles F. Richter. It measures how much the ground shakes 60 miles from the earthquakes epicenter. Richter magnitudes increase logarithmically, meaning the energy increases 10 times for each magnitude number.

Mercalli intensity is based upon observations of the resulting earthquake damage and not actually measured on instruments. Invented by Italian seismologist Giuseppe Mercalli.

Richter
Magnitude Mercalli
Intensity Description
2
I Usually not felt, but detected by instruments.
II Felt by very few people.
3
III Felt by many, often mistaken for a passing vehicle.
IV Felt by many indoors, dishes and doors disturbed.
4 V Felt by nearly everyone. People awakened. Cracked walls, trees disturbed.
5
VI Felt by all. Many run outdoors. Furniture moves. Slight damage occurs.
VII Everyone runs outdoors. Poorly built buildings suffer severe damage. Slight damage every where else.
6 VIII Everyone runs outdoors. Moderate to major damage. Minor damage to specially designed buildings. Chimneys and walls collapse.
7
IX All buildings suffer major damage. Ground cracks, pipes break, foundations shift.
X Major damage. Structures destroyed. Ground is badly cracked. Landslides occur.
8
XI Almost all structures fall. Bridges wrecked. Very wide cracks in ground.
XII Total destruction. Ground surface waves seen. Objects thrown into the air. All construction destroyed.


Seismograph

Earthquakes generate seismic waves which can be detected with a sensitive instrument called a seismograph.
Advances in seismograph technology have increased our understanding of both earthquakes and the Earth itself.

Perhaps the earliest seismograph was invented in China A.D. 136 by a m an named Choko.

Answer 2

The damage is usually measured in dollars.
But if you want to know how we describe the STRENGTH of an earthquake, that is based on the Richter scale.
Measurements on the Richter scale are numbers from 0 to 10. (Actually, they could be bigger than 10, and they could be less than 0. But I don't think there has ever been one bigger than 10, and negative values represent earthquakes so small that we don't bother to measure them.)

Anything over 4 is pretty significant. And an earthquake that measures 7 would cause significant damage and make headlines.

Answer 3

The richter scale.

Answer 4

Richter!

Answer 5

richter scale

Answer 6

It's the Modified Mercalli scale. This rates shaking intensity based on human observation it ranges from I (not felt by anyone) to XIII (Jesus returns).

Answer 7

rictor or somthin spelled like this rictor scale

Answer 8

Rictor. I am not sure if thats how you spell it.