The Richter Scale
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Earthquakes are measured using the Richter scale, which quantifies the magnitude of seismic events based on the amplitude of seismic waves. This scale ranges from 0 to 10, with each whole number increase representing a tenfold increase in the amplitude of the seismic waves.
The strength of an earthquake is measured using a seismic scale called the moment magnitude scale (Mw). It calculates the total energy released by an earthquake by measuring the amplitude of seismic waves. The scale is logarithmic, meaning that each whole number increase represents a tenfold increase in magnitude and roughly 31.6 times more energy released.
PAGASA uses the Modified Mercalli Intensity (MMI) scale to measure the intensity of an earthquake in the Philippines. This scale assesses the effects of an earthquake on people, structures, and the environment rather than measuring the actual energy released by the earthquake.
The Richter scale measures the magnitude of seismic waves produced by earthquakes. It provides a numerical value to quantify the energy released during an earthquake.
The Richter scale is used to measure the magnitude of earthquakes. It is a logarithmic scale, meaning each whole number increase represents a tenfold increase in amplitude. For example, an earthquake measuring 7.0 on the Richter scale is ten times larger in amplitude than one measuring 6.0.
Earthquakes are measured using the Richter Scale, Moment Magnitude Scale, or the Modified Mercalli Intensity Scale. These scales take into account characteristics of the seismic waves and the effects of the earthquake on structures and the environment to determine its magnitude and intensity.