I. Instrumental: Not felt by many people unless in favourable conditions.
II. Feeble: Felt only by a few people at best, especially on the upper floors of buildings. Delicately suspended objects may swing.
III. Slight: Felt quite noticeably by people indoors, especially on the upper floors of buildings. Many do not recognize it as an earthquake. Standing motor cars may rock slightly. Vibration similar to the passing of a truck. Duration estimated.
IV. Moderate: Felt indoors by many people, outdoors by few people during the day. At night, some awakened. Dishes, windows, doors disturbed; walls make cracking sound. Sensation like heavy truck striking building. Standing motor cars rock noticeably. Dishes and windows rattle alarmingly.
V. Rather Strong: Felt outside by most, may not be felt by some outside in non-favourable conditions. Dishes and windows may break and large bells will ring. Vibrations like large train passing close to house.
VI. Strong: Felt by all; many frightened and run outdoors, walk unsteadily. Windows, dishes, glassware broken; books fall off shelves; some heavy furniture moved or overturned; a few instances of fallen plaster. Damage slight.
VII. Very Strong: Difficult to stand; furniture broken; damage negligible in building of good design and construction; slight to moderate in well-built ordinary structures; considerable damage in poorly built or badly designed structures; some chimneys broken. Noticed by people driving motor cars.
VIII. Destructive: Damage slight in specially designed structures; considerable in ordinary substantial buildings with partial collapse. Damage great in poorly built structures. Fall of chimneys, factory stacks, columns, monuments, walls. Heavy furniture moved.
IX. Ruinous: General panic; damage considerable in specially designed structures, well designed frame structures thrown out of plumb. Damage great in substantial buildings, with partial collapse. Buildings shifted off foundations.
X. Disastrous: Some well built wooden structures destroyed; most masonry and frame structures destroyed with foundation. Rails bent.
XI. Very Disastrous: Few, if any masonry structures remain standing. Bridges destroyed. Rails bent greatly.
XII. Catastrophic: Total damage - Almost everything is destroyed. Lines of sight and level distorted. Objects thrown into the air. The ground moves in waves or ripples. Large amounts of rock may move position.
Richter scale, Modified Mercalli scale, Centigrade scale, and the Moment Magnitude scale
The Richter scale determines earthquake magnitude by measuring how much the ground moves, and the Modified Mercalli Intensity Scale determines earthquake intensity based on damage to buildings and effects on humans.
PAGASA uses the Modified Mercalli Intensity (MMI) scale to measure the intensity of an earthquake in the Philippines. This scale assesses the effects of an earthquake on people, structures, and the environment rather than measuring the actual energy released by the earthquake.
The Mercalli scale is subjective because it tells how much damage occurred at the location of the earthquake. What you think may be terrible damage I may think is minor in comparison to another earthquake.
The recent Haiti earthquake on August 14, 2021 had a Mercalli intensity scale that ranged from VII to IX. This indicates that the shaking was very strong to violent in various regions of Haiti.
Maby you should find the answer on anothr website.
The size of an earthquake is measured on the Ricter scale it can also be measured on the Mercalli scale.For an example the 2008 earthquake in China was 7.8 on the Rictor scale and in was XI on the Mercalli scale
The Mercalli Intensity Scale is a measure of earthquake intensity experienced at a given location. The Kobe earthquake in 1995 had intensities reaching up to VIII (8) on the Mercalli Intensity Scale in the heavily affected areas around Kobe.
the modified mercalli scale was VII-VIII
Mercalli is a scale for the measurement of earthquake intensities.
Mercalli Scale is used!
the strength of an earthquake.
severe
Mercalli scale
The mercalli scale was made by Giuseppe mercalli he was born in milan.
Richter scale, Modified Mercalli scale, Centigrade scale, and the Moment Magnitude scale
Mercalli Scale