Do does the gravity wave caused by the moon and the sun play a role in triggering earth quakes?

Question

Several years ago an astronomer Steven ??? proved his theory that the gravity wave cause by the moon and sun has an effect on triggering volcanic erruptions. In fact he could predict the intensity of the erruptions by the position of the sun and the moon. I believe the same gravity plays a signifcant role in triggering earth quakes. This gravity pulls at the earth magma and effect tides causing stress at the earth plates. Has anyone studied this?

Answer 1

yes it does play a role. For instance, Jupiter's moon IO is volcanically active because as it travels around Jupiter, it is stretched and squeezed by Jupiter's intense gravity. Similarly, the Sun and moon have an effect on the Earth, however it is much less marked. But I don't believe that you can use the position of the moon to calculate when a volcano will erupt or when an earthquake will occur. You can just think of the variations in gravity as agitating the already highly pressurized seams between the plates, or high-pressure magma just below the surface. It isn't causing these events, only helping to catalyze them. And it's not making as much difference as you probably think.

Answer 2

there are earth tides cause by gravity exactly the same as ocean tides. the peaks occur twice a day, excactly as ocean tides. if the earth tides had any effect at all, then we would measure small earthquake swarms twice each day. we don't.

was there a tide peak associated with every volcanic eruption/earth quake since the start of time? of course! twice a day they peak, so every single day that there was an eruption or earth quake there was also a tide peak. so what. 99.999% percent of the earth tides have no known associated volcano or earthquake action. that makes them an exceptionally poor predictor.

while earthtides have only been measured directly for the past 50 years or so, we have precise records of ocean tides going back many thousands of years. since they are essentially the same phenomena, there should be a recognizable correlation between earthquakes and ocean tides. scientists have tried, but it just isn't there.

Answer 3

Undoubtedly someone has thought I couldn't tell you who. The thing to remember is the the earth's crust is relatively thin and floats on a viscous magma "ocean". Picture wood chips, like those used in garden mulch, floating on the sea. Gravitational influences are going to affect any liquid. As magma rises and falls the crust moves with it. This tidal effect is partly responsible for keeping the mantle liquid due to the enormous amount of friction (hence earthquakes). The same effect is believed to occurring on Jupiter's moon, Europa, accounting for the fissured ice on the surface. It is hoped that this planetary core warming caused by tidal pull from Jupiter could possibly produce conditions like those found in the mid Atlantic rift, black smokers, that have been found to harbour life based on chemical energy instead of solar energy.

Answer 4

Yes it can have a small efect much like the moon cuases the tides it does have a slight pull on th magma under the crust

Answer 5

It will not create earthquakes. But it will accelerate the process.

Answer 6

These people think this is the case http://www.direct.ca/trinity/tidalquake/index.htm