Charles Richter defined the magnitude of an earthquake to be M=log10IS, where I is the intensity of the earthquake (measured by the amplitude of a seismograph reading taken 100 km from the epicentre of the earthquake) and S is the intensity of a ''standed earthquake'' (whose amplitude is...
Going up one whole number on the scale indicates the ground motion recorded by seismic equipment increased by a factor of 10. This means a magnitude 5 earthquake would result in about 10 times as much ground movement as a magnitude 4 earthquake, according to theDepartment of Geological Mining ...
This 7.1 earthquake struck 10.5 miles north-northwest of Ridgecrest in the Mojave Desert, a day after another 6.4-strong earthquake struck 7.5 miles southwest of the Searles Valley in the Mojave Desert. Multiple aftershocks were felt after both, but the latter was the strongest earthquake in the ...
An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves . Earthquakes are recorded with a seismometer , also known as a seismograph . The moment magnitude of an earthquake is conventionally reported, or the related and mostly obsolete Richter m...
Rebecca Harrington
我A. What an B. How C. What a D. What10. A 6-magnitude earthquake in Tibet on November 18, 2017. A. will happen B. happened C. has happened D. was happened 相关知识点: 试题来源: 解析 B happen为不及物动词,无被动式,直接happened ...
Wonderinghow earthquakes are measured? Seismologists have developed a new measurement of earthquake size, called the Moment Magnitude. All earthquakes can now be compared on the same scale with the Moment Magnitude. Previously, the Richter scale was used, however, it is precise only for measuring ...
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It is generally accepted that tectonic earthquakes may trigger volcanic activity, although the underlying mechanisms are poorly constrained. Here, we review current knowledge, and introduce a novel framework to help characterize earthquake-triggering pro
9.0 magnitude earthquake (九级地震 ) hit Japan on March 11, 2011 --www.bbc.comI’m Adam. It was quite scary even in Tokyo. Most people at our office stayed under their desks. After the earthquake, we moved to the park in Shinjuku. It was filled with people. Some schoolgirls were cry...