2. Have you ever experienced an earthquake? If you have, you
probably have not forgotten the feeling of the ground or floor
moving beneath your feet. This section provides information about
earthquakes and safety precautions for you and your family.
3. Measuring an Earthquake
A machine called a seismograph measures the strength of an
earthquake. The magnitude is measured on the Richter Scale and is
described in the categories listed below.
4. An earthquake over 5.0 can cause damage from things falling and moving around too much. 5. A 6.0 or higher magnitude earthquake is considered very strong, and 7.0 is classified as a major earthquake.
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