The Mercalli scale was designed to do just that The original scale was invented by Giuseppe Mercalli in 1902 and was modified by Harry Wood and Frank Neumann in 1931 to become what is now known as the ...
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 ...
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Earthquakes happen all the time, you just can't feel them. A guide to how they're measuredThe 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 minor, 3.9-magnitude earthquake struck in the San Francisco Bay Area on Monday, according to the United States Geological ...
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