The ________ magnitude scale, better for the largest earthquakes, is a measure of the energy released as judged from the displacement on the fault, its surface area and the rock's shear strength.It can also be calculated from very long period seismograms.

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The moment magnitude scale is a measure of the energy released by an earthquake, which is calculated based on the displacement on the fault, its surface area, and the rock's shear strength. This scale is better suited for the largest earthquakes and can also be calculated from very long period seismograms. The modified Mercalli scale measures the intensity of ground shaking at a specific location, while the open-ended Richter scale measures the magnitude of earthquakes up to a certain size based on the amplitude of the seismic waves. The term "Pinochet" is not relevant to earthquake magnitude scales.

The ________ Magnitude Scale, Better for the Largest Earthquakes, Is