Earthquacks and volcanos

Imagine swinging a heavy sold steel ball on a chain round our head. The centrifugal forces we feel we generate in the circular motion obeys Isaac Newtown's law of force and motion all bodies travel in a straight line.

The first thing we notice is a wrist wobble distorting the circle into more of an ellipse. The faster we go the worse it gets. We'd think it would be similar with the moon's motion round the earth tethered by the earth's mass ( the earth's gravity if you like ). In theory the moon's mass ( in this case it's weight if you like ) should pull a wobble in the earth's spin like the weight of the circling ball does to our wrists.

But the earth and moon system is different. When we look up to the moon we are always seeing the same side as the ball swinging round our heads so isn't spinning but orbits at an independent velocity than the earth's spin though.

It is believed the presence of the moon's mass ( gravity ) actually stabilized the earth to it's current spin. So the centrifugal force motion of the moon doesn't seem to cause any significant wobble. The moon orbiting at a different velocity to the earth's spin seems to have a effect preventing the earth from wobbling to the pull of the moon's mass.

An interesting feature worth mentioning I believe plays a major part in what causes earthquakes and volcanoes is Einstein's gravity. The general theory of reality states gravity is the circumstances of the mass of stars and planets bending space.

The earth's mass for example shrinks a portion round the entire circumference. In other words the mass of the earth itself compressing space, in turn the shrunk ( or distorted ) space compressing earth's atmosphere, oceans and us to the surface.

Einstein's gravity is saying space is not flat but plastic and pliable distorted by the presence of mass.( The gravity of dark matter, galaxies, stars, planets to comets and asteroids ).

In the case of our earth the streets of your neighbourhood is pulling space in and inward projectorary as much the neighbourhoods the other side of the world, in fact every cubic meter the entire circumference of the whole globe. In other words distorted space compresses all atmospheres keeping round planets. For earth at sea level the air pressure inside our bodies ( in fact all life on earth ) exert the same outward pressure as space is exerting inward pressure roughly a kilogram per cubic meter.

Unlike the other planets of our solar system the earth's thin crust is made up of a jigsaw of lands masses under the contents and oceans called plates floating like moving rafts on molten magma ( molten rock ) called plate tectonics.

The immediate magma under the crust is several hundred billion tones per kilometer. ( TPk ). The total mass altogether including the core compressed by the mantel layers several trillion tones the total mass of the earth. When you  pump up a tire with a bicycle pump the heat you feel is not from friction you know. It is caused by the pressure inside the pump forced into the tire.

All stars ( including our own sun ) on such large scales the pressure shrinking space round them generates so much heat the expanding energy keeps space from crushing stars to smithereens. Likewise the pressure of space exerted on the surface of the crust keeps the magma in a constant liquid state.

The deeper the heavier everything becomes the hotter and more compressed everything is. In other words the weight of all that magma. Magma chambers ( Caves ) are under heat pressure several times a demotic oven turned up to maximum broil. Sometimes there is nowhere for the heat to expand. The heat of the thermal regions of the world is testimony of the expanding heat escaping from bellow.

We'd we think the spin of the earth moves the magma in circulating currents. Think of a clear sphere full of water with particles floating in it. When we spin the clear ball we see particles trace the movements of the spin verifying the water's is circulating applied to the atmosphere and molten magma under our feet.

In other words our weather is not only controlled by the influence of the sun and moon but theoretically should also be from the spinning motion of earth too. Both the air we breath and the liquid magma is a fluid motion the motion caused by the spin of earth.

Its believed because magma's constitution is make up is made mostly iron and iron is magnetic the moving magma acts like a electric turbine generating a magnetic field round the earth. The magnetic field deflects harmful solar wind from the sun protecting us from the ravages of the star and universe.

The magma is so hot the fluid motion rolls about in energy like waves in the middle of a stormy ocean. Lava lakes in magma chambers. We have seen this in volcanic documentaries of lava lakes in the craters of active volcanoes.

The lava sloshes and rolls about in harmonic motion by the energy of the extreme heat motion below. This is what seismologists listen for in the study of the worlds volcanoes. The seismology listing posts pick up the frequency of the fluid motion rumbling in magma chambers moving closer to the surface as if the magma's talking to them it is on it's way.

The extreme heat keeping the magma fluid carries the plates as it moves. Kind of like steel plates sliding on oil. If the magma was cooler it would be to sticky to move let a lone the plates.

The magma bumps some of the plates together like corks on the surface of water. The plate boundaries get stuck, suddenly release, and others ride the top of others pushing back into the liquid magma in similar jambs.

The pressure of the continual motion backs up behind suddenly un sticks. The un sticking at boundaries send ripples for kilometres causing earthquakes and squeeze magma up cracks in the crust causing volcanic eruptions. Millions of tones squeeze magma up fissures to finally pop out of the surface or volcanic peaks.

Some boundaries are grinding off to each other pushing hard against each other in different directions. Grinding past one another millions of tomes builds behind the plate mass until the plates can't take it any more and slip. These are called strike slip earthquakes.

The other type when one plate overriding the other  jambs up for a time where pressure builds up behind until it can't take the pressure any more and slips called sub duct ion slips. The pressure of the moving plate overriding the other is an excruciating long time.

Millions of tones of pressure in several hundred years melts an area close to the junction called the lithosphere. Chambers of magma under pressure is squeezed up fissures in the lithosphere area just under the skin of the crust squeezed up the cone shape mountains of volcanoes.

Curiously all to do with the billions of tones of weight the earth's crust pressing on the magma caused by the total mass of the earth distorting space round the earth. In other words volcanoes and earthquakes are caused by Einstein's general theory of reality predicting gravity distortion of space created by the earth mass helps in creating earthquakes and volcanoes.