单词 | Richter scale |
释义 | Richter scaleDefinition Quantitative measure of earthquake-strength (magnitude) that indicates the seismic energy released by an earthquake at its epicenter (measured from a distance of 100 miles) on a 1 to 10 scale. It is a logarithmic scale: an increase of 1.0 in measurement corresponds to an increase of 10 times in the magnitude. The most powerful earthquakes recorded so far had a magnitude of 8.6, and occurred in 1920 in the Gansu province of China. Developed in 1935 by the US seismologist Charles F. Richter (1900-1985) of the California Institute of technology. Earthquake-intensity is measured on the Mercalli scale. Use 'Richter scale' in a SentenceA massive earthquake of epic proportion struck the coast of California early last Sunday morning, measuring a whopping 9.0 on the Richter Scale. Most earthquakes in the US are pretty small compared to the massive jolts seen in Asia, sometimes registering above a 7 on the Richter scale. When there is a big earthquake it will have a very high number on the richter scale letting everyone know how serious it was. |
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