Ways to Defend Against the Possibility of Megatsunamis (E and W.) And Earthquakes

 

  Recent findings "about old events!" have shown that the W. coast of the United States may be overdue for a giant 100 to 1000 foot high mega tsunami. Earthquakes, landslides, and volcanic eruptions have been relatively common in even recent history..these behemoths have struck 19 times over the last 10,000 years. Click here for the IFL Science Post or see the same link at the end of the page if you like.

  It's believed this may cause loss of many cities including much of Hawaii and coastal Alaska, and cause disruption of the world economy.

 On some of my other posts I've talked about finding ways to reduce or stop the impact of earthquakes including some  plans for urban areas like circular arrays of pendulums with plates above that move in the opposite direction as they oscillate around the balancing point between the weight and the plate above and this generates counteracting waves for input of the wave, reducing the damage to the city from the outside with a spherical set of lines of these arrays under the city. (This might also help defend buildings in earthquakes by automatically counteracting the shock wave by related methods. Large pendulums under buildings would allow the building if allowed to move under inertia to not move much as others have considered but using this type of counteracting force might also be more useful since it could be used anywhere in a building.)

Another type of zone under a city might have radial tunnels and with elastic lines at other angles under tension to much damp the shock wave from the quake.

 A more ambitious method I thought of reducing earthquakes might be to use nuclear or fusion power to power large gyroscopes that would store enough force to generate magnetic fields that could be focused down to the more magnetic mantle and melt more of the interface between the magma and the solid rock causing the flow of the magma current (as E to W) below them not to exert as much force by reduced friction on the crust and reducing the force of the plates moving against each other.

A related method (perhaps the best) for the West Coast mega tsunami hazard would be to dig wells along the fault line where the American Plate moving W is colliding with the Juan De Fuca plate from the west and make them out of something like super hardened ceramic concrete to withstand the heat of the magma and release it from that flow of the magma to the east that's moving the plates together.

 The flow of current goes upward where the plates meet and then to the E and W, but more to move the Juan Dr Fuca plate E. 

  This would be in a way of sort of volcano that would build up mountains of solid lava on the base of the ocean at the spreading center from the outflow that may otherwise cause the earthquake and tsunami. We might even have more Hawaii's by way of this..

 Without the currents moving the plates along underneath, the pressure doesn't build up and so there's no huge earthquake and the tsunami risk might also be reduced.

 

Scientists have also found there's a risk of an earthquake off the east coast by another cause.. an underwater landslide  "may cause a wave" And this could inundate the E. Coast including Washington.. for the solution to this I thought of another method and that would be a sort of net around and inside the underwater sand that may suddenly eventually collapse otherwise and cause the tsunami. The network along with the buoyancy of the sand under the water would at least slow down the submarine landslide if it ever started or perhaps even gradually lower it down. This may also be a good way to reduce the risk of avalanches.

 Originally I had thought of using a wall with explosives on the shore that generates a counter tsunami and stops it from causing damage.

  However I learned about the physics that the two waves would just go right through each other and you have two tsunamis. 

 

 With more consideration I realized that it might be possible to use drones from an airplane while the tsunami wave is still at sea. This wave is only about a foot high but it's traveling at hundreds of miles per hour much faster than other waves and often boats don't even notice them as they go through the ocean unless they know what they're looking at. Once a tsunami reaches the shore it's at an angle to the wave and it builds up to large height.

 On the other hand if the drones are sent out to right over where the wave is about to disperse since there are two forces on all moving waves, one tending to speed it up and the other tending to slow it down, if the drone hits the one foot wave with an explosion of the right type this allows the force trying to slow it down more influence and relatively soon with more explosions the tsunami is stopped.

 One of my first ideas about preventing earthquakes where the plates are built up was to have slow release of the force by smaller earthquakes by some method like injecting gas or fluid into the fault lines or or by  small well placed detonations that might not cause as much hazard.. and at first I even thought that immobilizing the plates on both sides of the fault with a strong enough bonding method might resolve the issue..these were my earlier ideas but they have some value for like fault lines where the pressure already had built up and can't be released as above by methods like the wells.

Here's the IFL megatsunami site link.

Thanks for reading..