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The magnitude of an earthquake is primarily determined by the amount of energy released during the seismic event, not its location. However, the location of an earthquake can impact its effects, such as the level of destruction and the extent of shaking experienced in nearby areas. Thus, while location influences the impact of an earthquake, magnitude is more closely tied to the energy released.
Magnitude :D
The trace that records an earthquake from seismic instruments is known as a seismogram. It shows the ground motion as a function of time, with peaks corresponding to the arrival of seismic waves generated by the earthquake. Seismologists analyze seismograms to determine the earthquake's location, magnitude, and depth.
Another word for an earthquake's strength is magnitude. Magnitude is a measure of the size of the seismic waves produced by an earthquake.
An earthquake with a magnitude of 9 is 10,000 times larger in amplitude than an earthquake with a magnitude of 4 on the Richter scale. This means that the energy released by a magnitude 9 earthquake is significantly greater than that of a magnitude 4 quake.
The highest ranked magnitude for an earthquake in the US was the 1964 Great Alaska Earthquake, which had a magnitude of 9.2.