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The Modified Mercalli intensity scale ( MM, MMI, or MCS) measures the effects of an earthquake at a given location. This is in contrast with the seismic magnitude usually reported for an earthquake.
The Modified Mercalli Intensity value assigned to a specific site after an earthquake has a more meaningful measure of severity to the nonscientist than the magnitude because intensity refers to the effects actually experienced at that place.
A escala de Mercalli, na actualidade em rigor a Escala de Mercalli Modificada, é uma escala qualitativa usada para determinar a intensidade de um sismo a partir dos seus efeitos sobre as pessoas e sobre as estruturas construídas e naturais. Foi elaborada pelo vulcanólogo e sismólogo italiano Giuseppe Mercalli, em 1902, daí o nome que ostenta. [ 1]
Adapted from Sieberg's Mercalli-Cancani scale, modified and condensed. Note: The Modified Mercalli scale is designed to describe the effects of an earthquake, at a given place, on natural features, on industrial installations and on human beings.
麥加利地震烈度表 （英語： Mercalli intensity scale ）是一個用來量度 地震烈度 的單位，也就是說用來量化 地震 對某一特定地點所受到的影響。 由 地震 時地面 建築物 受破壞的程度、地形地貌改變、人的感覺等宏觀現象來判定。 地震烈度源自和應用於十度的 罗西–福雷尔地震烈度表 ，由義大利 火山學家 朱塞佩·麥加利 （英语：Giuseppe Mercalli） 在1883年及1902年修訂。 後來多次被多位 地理學家 、 地震學家 和 物理學家 修訂，成為今天的 修訂麥加利地震烈度表 （ Modified Mercalli intensity scale ）。 麥加利地震烈度從感覺不到至全部損毀分為1至12度。 5度或以上才會造成破壞，烈度會因觀測地點的不同而異。
Há 4 dias · Felt earthquake reports are quantified using the New Zealand Modified Mercalli (MM) intensity scale. The MM scale grades the impact of an earthquake on people living on the earth's surface, and so can be more useful as an indicator of the earthquake's significance to the community.
This scale, composed of increasing levels of intensity that range from imperceptible shaking to catastrophic destruction, is designated by Roman numerals. It does not have a mathematical basis; instead it is an arbitrary ranking based on observed effects.
