Seismometer
Seismometers are devices used to detect and measure the intensity and magnitude of earthquakes. They work by recording the ground motion caused by seismic waves, which allows seismologists to analyze the data and determine the earthquake's magnitude and intensity.
The Richter scale measures the magnitude of an earthquake, which is the amount of energy released at the source. It does not measure the intensity or effects of the earthquake at different locations. It is commonly used to compare the size of earthquakes.
The Modified Mercalli Intensity scale is used to measure the intensity of an earthquake based on its observed effects on people, buildings, and the natural environment rather than the seismic energy. It provides a qualitative assessment of the shaking and damage caused by an earthquake at a specific location.
There is no particular instrument used for measuring tornado intensity. Ratings are based primarily on damage assessment. Occasionally doppler radar has measure wind speeds inside a tornado, but such measurements are rare.
Strong-motion seismometers (which are also known as Accelerographs) are used to measure the intensity of earthquakes. It should be noted that intensity is different from magnitude and is measured using a differing scale (Moddified Mercalli or Macroseismic scale for intensity vs Moment Magnitude scale for earthquake magnitudes.)Seismometers / accelerometers measure the intensity of earthquakes.Seismometers - instruments that measure motions of the ground.The visual output, either on a monitor or on paper is called a seismographSeismometers are in part used to measure the intensity of earthquakes. The scale used to measure earthquake intensity is known as the Modified Mercalli scale. A variation of this is used in Europe and is known as the Macroseismic scale.Earthquakes are measured with a seismometer.Seismometers and accelerometers are used to measure the acceleration of the ground surface and the total amplitude of seismic waves during an earthquake.These values are used by seismologists to find the intensity of the earthquake (along with observations of the damage done to structures).Earthquakes are measured using machines called SEISMOMETERS which record the shaking as waves on a graph .The magnitude of most earthquakes is measured on the Richter scale, invented by Charles F. Richter in 1934. The Richter magnitude is calculated from the amplitude of the largest seismic wave recorded for the earthquake, no matter what type of wave was the strongest.
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A seismograph.
PAGASA (Philippine Atmospheric, Geophysical and Astronomical Services Administration) uses the Richter scale to measure the intensity of earthquakes. This scale is a logarithmic scale that quantifies the energy released by an earthquake.
An earthquake instrument is a device or tool used to measure and detect the different parameters associated with earthquakes, such as magnitude, intensity, and frequency. Some common earthquake instruments include seismometers, accelerometers, and tiltmeters, which help scientists monitor and study seismic activity.
It depends on what substance/object you are trying to determine the intensity.
The Richter magnitude scale is used to measure the strength of an earthquake.
An instrument used to measure and record ground movements during an earthquake is called a seismometer or seismograph. These devices detect and record the vibrations caused by seismic waves, allowing scientists to analyze the intensity, duration, and characteristics of the earthquake. The data collected helps in understanding earthquake behavior and assessing potential risks.
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.
A seismograph is the instrument used for recording the intensity and duration of an earthquake. It detects and measures the motion and vibrations of the ground caused by seismic waves.
Richtor scales
Seismometers are devices used to detect and measure the intensity and magnitude of earthquakes. They work by recording the ground motion caused by seismic waves, which allows seismologists to analyze the data and determine the earthquake's magnitude and intensity.
The moment magnitude scale is used to measure the magnitude of large earthquakes. The Richter scale is still used to make an initial estimate of the magnitude of larger earthquakes and to measure small and moderate ones (those with a magnitude below 7).