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Earthquakes happen before valcanoes erupt because
Earthquakes move nearer to the surface as an eruptionapproaches. And these "microearthquakes" happen more frequently before an eruption, until all the seismometer can register is a distinctive vibration, slight but continuous, known as a harmonic tremor.
The seismic activity associated with volcanism is usually as a result of pressure increases in the magma chamber below the volcano which cause fracturing of the surrounding rock mass
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∙ 14y ago
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∙ 16y agoAs magma makes its way to the earth's surface, it travels upward with a lot of force and pressure, which fractures the overlying rock causing tremors and earthquakes to occur.
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∙ 12y agoearthquakes happen before volcanoes because when there an earthqauke happens a volcano can form by the cracks in the earth and when the cracks cause volcanoes to erupted
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∙ 13y agoEarthquakes are caused by a sudden surge of magma from the Earth's mantle
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∙ 12y agoan earthquake happens before an eruption because of all the force put in to the ground or the plates it depends
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∙ 11y agothe earth quakes happen because the volcanoes are fueled bye the center off the earth when that erupt they move the earths plate coursing earth quakes
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∙ 10y agoAs the magma moves underground if causes rock to fracture, and the movement of the magma itself causes vibrations.
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Where do earthquakes not happen?
Small earthquakes can happen almost anywhere on the earth's surface, however major earthquakes mainly only occur at plate boundaries or along very large faults. Earthquakes can also happen around volcanoes especially when they are due to erupt.
How can volcanoes errupt under water?
The tectonic plates shifting is what causes an underwater volcano to erupt. Plate shifting is also the cause of tsunamis and earthquakes.
Do seismologists also study volcanoes?
They do occasionally, and they sometimes help vulcanologists. This is because volcanoes generate earthquakes, and analyzing patterns in these earthquakes can help to tell if a volcano is likely to erupt soon.
Did the mt st Helen's eruption affect the land around it?
There is always earthquakes when volcanoes erupt, so, yes.
What processes within Earth cause geologic activity?
Plate interactions and Earthquakes. Also Convection Currents!! How earthquakes occur is when volcanoes erupt a earthquake happens some where in the world. when a Convection Currents happen inside the in the mantle!! Plate interactions create a folded mountain!!
Are earthquakes and volcanoes related?
Earthquakes can cause a volcano to erupt.
What are undersea earthquakes?
Undersea volcanoes that erupt.
What do scientists hope to learn by collecting information about friction along faults?
Predicting when earthquakes will happen and when volcanoes will erupt
Where do earthquakes not happen?
Small earthquakes can happen almost anywhere on the earth's surface, however major earthquakes mainly only occur at plate boundaries or along very large faults. Earthquakes can also happen around volcanoes especially when they are due to erupt.
How can volcanoes errupt under water?
The tectonic plates shifting is what causes an underwater volcano to erupt. Plate shifting is also the cause of tsunamis and earthquakes.
How do you know when volcanoes will erupt?
Occurence of tremors, earthquakes, gasseous emission and landslides.
What does movement along plate boundaries cause?
Earthquakes, volcanoes to erupt, mountains, etc...
Do earthquakes have a vent?
No. Volcanoes have vents. Vents are holes though which ash, gas, and lava can erupt.
What causes volcanoes to erupt under earths surface?
mostly earthquakes or plate tectonic movement.
Do seismologists also study volcanoes?
They do occasionally, and they sometimes help vulcanologists. This is because volcanoes generate earthquakes, and analyzing patterns in these earthquakes can help to tell if a volcano is likely to erupt soon.
What happen when a volcano is active?
When a volcano is active it will erupt. These volcanoes might take many years to erupt but will still erupt.
What explains earthquakes and volcanoes erupting?
That's two different questions. Earthquakes don't erupt. Earthquakes happen when underground rock structures break, moving the earth above them. Volcanic eruptions happen with the pressure of the molten rock (magma from inside the Earth) breaks through a rock layer above it.
