I Felt by very few people; barely noticeable. II Felt by a few people, especially on upper floors. III Noticeable indoors, especially on upper floors, but may not be recognized as an earthquake. IV ...

is communicated with the Modified Mercalli (MM) Intensity Scale. Here's a summary of how they correlate: Under 5.0 magnitude: These tend to be I-V on the MM scale. Anything in this intensity range ...

Another way to measure the strength of an earthquake is to use the observations of the people who experienced the earthquake, and the amount of damage that occurred, to estimate its intensity. The ...

The Modified Mercalli Intensity scale shows how intense an earthquake is at a specific site, based on what people on the ground would feel. The scale is expressed in Roman numerals. Magnitude ...

A strong, 6.3-magnitude earthquake struck in Colombia on Sunday, according to the United States Geological Survey. The ...

defined by the Modified Mercalli Intensity scale as “violent” — enough to shift a structure off its foundation. Yet the downtown Los Angeles region got far less intense shaking from the same ...