The effect of an earthquake on the Earth's surface is called the intensity. The intensity scale consists of a series of certain key responses such as people awakening, movement of …

The MMI scale measures intensity of shaking, at any particular location, on the surface. It was developed from Giuseppe Mercalli 's Mercalli intensity scale of 1902.

Damage slight in buildings designed to be earthquake resistant, but severe in some poorly built structures. Widespread fall of chimneys and monuments. Damage considerable in some …

Jan 2, 2026 · Because the entire range of observed effects is not capable of simple quantitative definition, the strength of the shaking is commonly estimated by reference to intensity scales …

Table of earthquake intensity, witness perceptions, and damage.

This scale is composed of 12 increasing levels of intensity based on observed effects. These range from imperceptible shaking to catastrophic destruction, designated by Roman numerals.

The intensity differs from the magnitude which is related to the energy released by an earthquake. There are multiple versions of the MM scale, the one listed here being the 1931 version.

Jan 1, 2016 · Definition Intensity Scales. A scale to measure the effects and degree of damage caused by an earthquake to the local environment and buildings affected by the seismic event …

Jun 22, 2025 · The Mercalli Intensity Scale is a powerful tool for understanding how earthquakes affect people, places, and structures. While it doesn’t measure energy, it captures something …

5 days ago · Discover how the Modified Mercalli Intensity scale gauges the localized, descriptive effects of an earthquake on structures and human perception, contrasting it with magnitude.