They come in all magnitudes from can't-be-felt to knock-down-everything standing for 500 miles. They can happen almost anywhere (swamps and sandbars seem safe), but most (85%) happen on plate boundaries.
The size of an earthquake is expressed as its seismic energy, or magnitude. The scale of magnitude for an earthquake is the Richter scale, also known as "ML" (local magnitude).
I think the word you're looking for is "magnitude."
the amount of damage & the amplitude of the seismic wave
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No. Size does not necessarily affect the magnitude of an earthquake. In fact, a deep earthquake will have less of an effect on the surface than a shallow earthquake of the same magnitude.
Measure the size of the earthquake.
It was a 6.3 on the Richter scale.
they do this with the help of machine
Seisometers are used to measure how much the ground moves, but the only real way to detect them is to look at previous records as to how long it has been since an earthquake; if it a long time, an earthquake could happen soon.
The term magnitude is used to describe the size of an earthquake.
The Earthquake in Japan was a 9.0 magnitude.
The scientists determined the size of the earthquake by combining forces when the tsunami triggered them>
No. Size does not necessarily affect the magnitude of an earthquake. In fact, a deep earthquake will have less of an effect on the surface than a shallow earthquake of the same magnitude.
The richer scale
Measure the size of the earthquake.
magnitude of an earthquake can be determined from the data ... an empirical quantitative ranking of the earthquake's inherent size or strength ... Another way to measure the size of an earthquake is to compute how much ... length with an average seismogenic width of 100km to produce an Mw10.5.
A Seismograph
It was a 6.3 on the Richter scale.
Computers used for mainly scientific calculations.
The extent or size of an earthquake at a particular time is determined from the logarithm of the amplitude of waves that are recorded by a seismograph. The magnitude and intensity of the earthquake is measured on a Richter scale.
earthquake data is used to explore the structure of the mantle