TSUNAMI

what is tsunami?
tsunami is big waves that caused by nomerous geografical changes by:
1.EARTHQUEKE
the earthqueke must have the strength more than 6 SR, happend in the deep sea more less 7km depth, there is subduction that make the land comes up and down, the tsunami can not be happend if the gegrafical changes is in the horizontal movement.
2. UNDERSEA LANDSLIDE
the falling land in a huge volume will push the water and create numorous big wave in a second ..and by the effect of gravitation it come in to it's equillibrum..
3. UNDER SEA ICESLIDE
just like the effect of landslide..but it happend in the gletser area. happend because of increasment of temperature or by the effect of gravitation.for example is in old CALIFORNIA
4. VULCANIC ACTIVITY
tsunami that caused by vulcanic activity from mountain in the sea , just like tsunami that happent in indonesia at 1883, krakatau mountain errupted ang take life of almost 37.000 people. the erruption also make the geografical changes on the land structure arround the mountain. The mountain it's self destroyed and come up a new litlle mountain called RAKATA
5. COSMIC BODY IMPACT
there's 3 scenario that tsunami can be happend because of this reason, meteorid impact, asteroid impact, or crossing planet... that one last reason is believe destroy ATLANTIC the lost city..the crossing obcejt is a planet named HERCOLUBUS..the planet make a big gravity changes when it were crossing the earth orbital..it caused big eartquke ang the most destructif effect is when tsunami happend..the tsunami covver up all the surface of the city and burried ATLANTIC CITY in to deep sea that until now people still trying to find it's existence