Earthquake Glossary

There are 16 entries in this glossary.
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Term Definition

A measure of an earthquake's effects at specific locations. The most commonly-used scale of intensity is the Modified Mercalli Intensity (MMI) index, which defines a range from one to twelve (I to XII), with one being the lowest and XII the highest intensity.

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Out of 500,000 earthquakes each year only 20% can be felt.