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2. www.usgs.gov › programs › earthquake-hazardsEarthquake Magnitude, Energy Release, and Shaking Intensity

   www.usgs.gov › programs › earthquake-hazards

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   Magnitude is the size of the earthquake. An earthquake has a single magnitude. The shaking that it causes has many values that vary from place to place based on distance, type of surface material, and other factors. See the Intensity section below for more details on shaking intensity measurements. Types of Magnitudes

3. www.britannica.com › science › earthquake-geologyEarthquake - Magnitude, Intensity, Effects | Britannica

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   Furthermore, earthquake intensity, or strength, is distinct from earthquake magnitude, which is a measure of the amplitude, or size, of seismic waves as specified by a seismograph reading. See below Earthquake magnitude.

4. People also ask

   What is a seismic intensity scale?

   • Seismic intensity scales categorize the intensity or severity of ground shaking (quaking) at a given location, such as resulting from an earthquake. They are distinguished from seismic magnitude scales, which measure the magnitude or overall strength of an earthquake, which may, or perhaps may not, cause perceptible shaking.

   Seismic intensity scales - Wikipedia

   en.wikipedia.org/wiki/Seismic_intensity_scales

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   What is the magnitude of an earthquake?

   • Magnitude is the size of the earthquake. An earthquake has a single magnitude. The shaking that it causes has many values that vary from place to place based on distance, type of surface material, and other factors. See the Intensity section below for more details on shaking intensity measurements. Types of Magnitudes

   Earthquake Magnitude, Energy Release, and Shaking Intensity

   www.usgs.gov/programs/earthquake-hazards/earthquake-magnitude-energy-release-and-shaking-intensity

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   What is earthquake intensity?

   • Earthquake intensity measures how strongly the earthquake impacts a specific location. In the light bulb analogy, it is the brightness with which you perceive the light at a place in a room. Can you read a fine-print book by the lamp? Pick up a needle? Perform delicate surgery? Depends on the wattage of the bulb, and how far you are from it, right?

   Magnitude/Intensity | Pacific Northwest Seismic Network

   pnsn.org/outreach/about-earthquakes/magnitude-intensity

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   What does a high earthquake intensity scale mean?

   • The lower numbers of the intensity scale generally deal with the manner in which the earthquake is felt by people. The higher numbers of the scale are based on observed structural damage. Structural engineers usually contribute information for assigning intensity values of VIII or above. Public Domain.

   Earthquake Intensity Scale | U.S. Geological Survey - USGS.gov

   www.usgs.gov/media/images/earthquake-intensity-scale

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5. www.usgs.gov › modified-mercalli-intensity-scaleThe Modified Mercalli Intensity Scale | U.S. Geological Survey

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   The effect of an earthquake on the Earth's surface is called the intensity. The intensity scale consists of a series of certain key responses such as people awakening, movement of furniture, damage to chimneys, and finally - total destruction.

6. pnsn.org › about-earthquakes › magnitude-intensityMagnitude/Intensity | Pacific Northwest Seismic Network

   pnsn.org › about-earthquakes › magnitude-intensity

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   Intensity. Earthquake intensity measures how strongly the earthquake impacts a specific location. In the light bulb analogy, it is the brightness with which you perceive the light at a place in a room. Can you read a fine-print book by the lamp? Pick up a needle? Perform delicate surgery?

7. Videos

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     Earthquake Intensity—What controls the shaking you feel?

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     Measuring Earthquakes

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     How We Really Measure Earthquakes: The Moment Magnitude Scale

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8. www.usgs.gov › media › imagesEarthquake Intensity Scale | U.S. Geological Survey - USGS.gov

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   Jul 1, 2021 · Earthquake Intensity - Modified Mercalli Intensity (MMI) Scale. The Modified Mercalli Intensity value assigned to a specific site after an earthquake has a more meaningful measure of severity to the nonscientist than the magnitude because intensity refers to the effects actually experienced at that place.

9. www.nationalgeographic.org › maps › mapmakerMapMaker: Earthquakes and Shake Intensity (Last 30 Days)

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   May 20, 2024 · Zooming into a given event will show you the shake intensity, or the amount of shaking a particular place experiences. Typically, the most intense shaking occurs nearest the epicenter of an earthquake and lessens with distance depending on the geology.

10. en.wikipedia.org › wiki › Seismic_intensity_scalesSeismic intensity scales - Wikipedia

    en.wikipedia.org › wiki › Seismic_intensity_scales

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    Seismic intensity scales categorize the intensity or severity of ground shaking (quaking) at a given location, such as resulting from an earthquake. They are distinguished from seismic magnitude scales, which measure the magnitude or overall strength of an earthquake, which may, or perhaps may not, cause perceptible shaking.