Earthquake Measurement

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How much more ground motion occurs with a 6.0 earthquake than with a 4.0 earthquake?

Insrument that records vibrations and determines location and strength of an earthquake.

Another word for an earthquake's strength.

Point along a fault at which the first motion of an earthquake occurs.

Point on the Earth's surface directly above an earthquake's starting point.

Scale used to measure earthquake damage.

Scale used to measure earthquake strength.

Tracing of earthquake motion.