mercalli scale vs richter scale

Definitions

noun

1. a scale formerly used to describe the magnitude of an earthquake; an earthquake detected only by seismographs is a I and an earthquake that destroys all buildings is a XII

Examples

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Definitions

noun

1. a logarithmic scale of 1 to 10 formerly used to express the magnitude of an earthquake on the basis of the size of seismograph oscillations

Examples

Shortly before noon on September 1, 1923, an earthquake measuring 7.9 on the Richter scale sent shockwaves through the Tokyo-Yokohama metropolitan area.

The Richter scale measures the amount of seismic energy released from the hypocenter of the earthquake; it is not used to express damage.

The earthquake registered 7.2 on the Richter scale.

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