5(a)The magnitude of an earthquake is measured by the Richter scale. The magnitude, M, can be determined by the equation M =1, where I is th intensity of seismic waves recorded by seismographs and I, is a constant which represents the threshold intensity.(i) State the magnitude of an...
四种不同的地震震级(Fourdifferentearthquakemagnitude) Fourdifferentmagnitudesofearthquakes(ML,MS,MB,MW) Magnitudeisameasureofthesizeoftheearthquakeitself. Atpresent,themostbasicmagnitudescalesare4kinds:local magnitudeML,bodywavemagnitude(MbandMB),surfacewave magnitudeMSandmomentmagnitudeMW. Thefirst3magnitudesarea...
intensity, intensity level, strength - the amount of energy transmitted (as by acoustic or electromagnetic radiation); "he adjusted the intensity of the sound"; "they measured the station's signal strength" amount - the relative magnitude of something with reference to a criterion; "an adequate...
Amagnitudeis themeasurementorabsolute valueof a quantity. A magnitude is represented by a positive real number. Put simply, a magnitude is thesizeof some quantity. For example, the magnitude of an earthquake, measured on the Richter scale, usually varies between 1 and 10 and represents thesize...
The Richter magnitudescalewas developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes. The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. Adjustments...
Reports about the 7.9 earthquake remain sketchy, but an earthquake of that magnitude can do massive damage. One would have thought that a story of this magnitude would warrant extensive media coverage but no, the silence is deafening. The technical magnitude of such a task is compounded by the...
This scale, invented in 1934 by California scientist Charles Richter, measures the magnitude of an earthquake, and the result is a number from 0 to 10, as measured on a machine called a seismograph. The scale is not a normal number scale, however; rather, it is a logarithmic scale. This...
scientists refer to an earthquake's magnitude as a measure of its strength. Geologists once used the Richter scale, but that measure is considered outdated and is no longer used. An earthquake can also be described by its intensity, or the measure of shaking and damage caused by the quake....
1. It has a magnitude as well as phase angle. It is a complex quantity. 感抗不但有幅值,而且有相角,它是一个复数量。 2. Lightning voltages may be of high magnitude but are of very short duration; their time is measured in microseconds. ...
the magnitude of an earthquake 地震的震级 the magnitude of a problem 问题的严重性 in a different magnitude 以不同的程度 of the first magnitude 第一流的,最重要的 the same order of magnitude 同数量级 再来看几个含有“magnitude”的例句: The earthquake measured 8.0 in magnitude. (这次地震的震级...