When an earthquake hits, people often hear a single number reported in the news, which describes the earthquake's magnitude. Yet that number doesn’t always explain what the shaking actually felt like ...
Scientists measure both the energy released in an earthquake and its damage. In 1902, Italian scientist Giuseppe Mercalli introduced a scale that measures the intensity of an earthquake based on its ...
- 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 ...
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