does sunshine contribute to volcanic eruption?

Answer 1

It is recognised that the gravitational distortion caused by the moon can effect volcanoes that are active. Even extreme high tides in some areas may be enough to have a slight effect.

The sun has extreme solar storms from time to time. These send huge bursts of radiation flooding to earth and around it. This can distort the magnetic field around the earth and could thus cause stress in the earths crust.

Those that say the sun has no effect just have to be wrong. Take an eruption of ash. This is ejected with a high velocity and high heat and rises into the atmosphere. At night when there is no sun and the air is cool the cloud will cool faster and thus travel slower as it gets higher. If however the sun is out and the air is warmer the cloud will stay fractionally hotter and thus travel fractionally faster for longer.

Also consider the few volcanoss that sit under ice sheets. These exert tremendous weight on the top of the volcanoe, if climate change melts the ice sheet and the weight is removed?

In the early years of the formation of the earth it was covered by volcanoes. These have drastically been reduced as the earth cooled. Heat change has thus had an effect and heat from the sun has to be a part of that. It is predicted that the sun will eventually become a red dwarf and expand it outer atmosphere out past the earth. That will certainly wake many volcanoes.

So the sun almost certainly does effect volcanic activity even if it is in miniscule ways. To discount the effect of the sun is surely unscientific!

Answer 2

No sunshine has nothing to do with a volcanic eruption. However, sunshine is often reduced following an eruption because the ash plume may extend miles into the atmosphere and circle the globe many times before it dissipates. That would be the only connection between a volcanic eruption and sunshine.

Answer 3

It may have an effect, albeit a rather miniscule one, if you consider the butterfly effect. Sun radiation that gets trapped in the atmosphere and causes global warming is speculated to lead to the melting of large bodies of ice, such as ice shelves in the poles. when those pieces of ice break away, they displace the seawater, and that displacement could have a slight effect on tectonic forces and could definitely effect barometric pressure at the time of a volcanic eruption.

Answer 4

not particularly, volcanic eruptions happen for the same reason earth quakes do, the movement of the plates on the surface of the planet. Volcanoes just happen in places where the molten layer is closest to the surface.

Answer 5

No. Volcanic eruptions depend on geotermic energy, not on external energy.

Answer 6

I am a geologist. Sunlight has absolutely ZERO effect on volcanic activity.

Answer 7

Hi. I agree with the first answer. Sunlight may contribute to the environment, but not tectonic activity.

Edit: And the second answer.

Answer 8

Volcanic activity depends upon geothermic energy ie. internal
energy.not external energy.

Answer 9

No way.