Rossi–Forel scale

noun \¦rȯ|sēfəˈrel-, ¦rä|\

Definition of Rossi–Forel scale

  1. :  an arbitrary numerical scale of intensity of seismic disturbances ranging from one for a barely perceptible tremor to 10 for an earthquake of the highest intensity

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Origin and Etymology of rossi–forel scale

after Michele Stefano De Rossi †1898 Italian geologist and François Alphonse Forel †1912 Swiss naturalist


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