What is the difference between a tectonic eartquake and a volcanic earthquake?

Answer 1

Earthquakes are vibrations or tremors that shake the Earth, volcanoes are fissures or vents in the Earth which allow molten lava and gasses to escape out onto the Earth's surface.

More detail is given below:

Earthquakes are vibrations or tremors in the ground that are caused by the build up of stress. This causes the earth's crust to deform, storing energy (a lot like a squashed spring or stretched elastic band). When the stress becomes to large the Earth's crust fractures or a pre-existing fault slips. This causes all the stored energy to be released and the crust to spring back into position. This release of energy causes the seismic waves which are felt and cause damage.

Volcanoes on the other hand are fissures or vents where molten rock (known as lava) as well as gasses and ash are erupted (forced out onto) the Earth's surface. Volcanoes unlike earthquakes are caused by the melting of material in the Earth's mantle. This is often the result of the mixing or introduction of hydrated minerals and water into the mantle material (this reduces the melting temperature and commonly occurs at subduction zones). When the material melts, it's density decreases and it becomes buoyant and forces it's way to the surface. This sort of volcanic process created volcanoes like Mt St Helens. Other processes that cause mantle melting include decompression (such as occurs at Mid-Ocean-Ridges creating the volcanism at places like Iceland, and hot spot volcanism which is thought to be caused by very hot up welling mantle material from deep within the earth to the near surface. The heat from this material in turn leads to melting. This sort of process is thought to be responsible for the intra-plate volcanism found in places like Hawaii.

Answer 2

A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot magma, volcanic ash and gases to escape from below the surface, and an earthquake, (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the earth's crust that creates seismic waves. The sperm, or seismic activity of an area, refers to the frequency, type and size of earthquakes experienced over a period of time.

Answer 3

earthquakes are when the earth shakes as two plates collide. volcanoes are formed by magma coming to the surface of the earth and cooling and hardening. this process repeats until it goes extinct.

THE MAIN DIFFERENCE: earthquakes shake;volcanoes shoot lava.

Answer 4

A tectonic earthquake is when two land masses or tectonic plates push together so hard that they grind together causing vibrations (earthquake) along the fault line where the plates meet.

A volcanic earthquake would be when lava is pushed up thru the volcano due to high pressures below the earth.

I'm no expert tho

Answer 5

An earthquake is caused when the increasing pressure of two tectonic plates upon what is called a 'fault line' reaches a high enough level to cause them to move and grind against each other. This causes the ground above them to shake a considerable amount considering how deep underground the plates are. Granted that some are much more powerful than others.

Volcanoes are, on a technical basis, a vent in which magma and gases are spewed out from the mantle. These are stored in internal chambers of the volcano and are mostly stable, but eventually a new gas or magma pocket will push itself into the vent and block it off to the extent that internal pressure rises enough to force some of the magma upwards into the chamber and sometimes with enough explosive force in even this stage to cause an eruption.

An earthquake nearby an active volcano can easily cause an eruption by the lower plates moving, causing vibration, and having an effect similar to having a full bottle of water with an open cap that gets smashed flat by either two hands or a stomp.

To describe a volcano, think mentos + soda. Easiest way I can describe it.

Answer 6

Tectonic earthquakes are caused by movements in the earth's crust while volcanic earthquakes are caused by the movement of molten material or by gas pressure inside a volcano.

Answer 7

How are tectonic and volcanic earthquakes differ?

Answer 8

A tectonic earthquake occurs because of the shaking of the crustal plates while a volcanic earthquake happens because of the volcanic activity.

Answer 9

plate tectonics cause earthquakes by clashing together. volcanoes are made by the lava pushing up.

Answer 10

tectonic and plutonic earthquakes