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what are instruments or technology are used to study active volcanoes?How do these tools work?Which are used when the volcano is quiet or dormant?

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Rickie Glover

Lvl 13
2y ago
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AnswerBot

5mo ago

A seismometer is commonly used to measure volcanic activity, detecting seismic waves produced by movements within the Earth's crust. Other instruments include tiltmeters to measure ground deformation and gas sensors to monitor emissions of gases like sulfur dioxide. Additionally, satellite technology can provide valuable data on volcanic activity by capturing thermal and gas emissions from above.

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Wiki User

11y ago

Volcanic Explosivity Index
There is no single instrument used to "measure a volcano" as was asked. Chemical analysis of gases and lava samples is conducted in the laboratory. Lasers are used in conjunction with GPS and other information networks to log change in the size and shape of the volcano. Certainly we keep track of seismic activity. And these are just primary evaluations we do to study a volcano.
scientists use seismometers to measure the earthquake below the volcano.

-JLO

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10y ago

A tiltmeter is an instrument placed around and on a volcano that measures any changes in the surface movement. A tiltmeter utilizes a fluid filled container to monitor these changes and then sends data via computer.

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13y ago

A seismograph is used to measure seismic activity that might preclude a volcanic eruption, but it is not used to measure the magnitude of a volcano like it is used to measure the magnitude of an earthquake or nuclear explosion. Volcanologist use the Volcanic Explosive Index to measure a volcanic eruption's magnitude.

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13y ago

Strain gauges, tilt meters and creep meters as well as high precision GPS may be used to measure surface deformations.

Use may also be made of synthetic aperture radar and a process known as InSAR where the radar is used to create a series of very accurate (mm scale) topographic maps of an area either from a satellite or aircraft. These are then compared to each other and any difference is highlighted. This process is known as interferometry. If any deformation is occurring, this will be recorded other time and the interferometry process will highlight exactly where.

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13y ago

seismetres, tiltmetres, gps, theodolite, gas monitors, thermal image

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10y ago

Strainmeters are used to measure the movements of a volcano. They are placed into holes near the surface of the volcano to give off their readings.

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13y ago

seismography

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Q: What instrument measures volcanoes?
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