Earthquake and Tsunami in Japan

March 11, 2011. On Friday, at 2:46 p.m. Tokyo time, the quake struck. First came the roar and rumble of the temblor, shaking skyscrapers, toppling furniture and buckling highways. The day the most powerful earthquake to hit Japan since records begin 140 years ago struck the country's north-east coast Friday

Minutes later, the 8.9-magnitude earthquake set off a devastating tsunami that sent walls of water washing over coastal cities in the north. The waves as high as 30 feet rushed onto shore, whisking away cars and carrying blazing buildings toward factories, fields and highways.Concerns mounted over possible radiation leaks from two nuclear plants near the earthquake zone.

The death toll from the tsunami and earthquake, the strongest ever recorded in Japan, was in the hundreds, but Japanese news media quoted government officials as saying that it would almost certainly rise to more than 1,000. By Saturday morning, Japan was filled with scenes of desperation, as stranded survivors called for help and rescuers searched for people buried in the rubble. About 200 to 300 bodies were found along the waterline in Sendai, a port city in northeastern Japan and the closest major city to the epicenter. Thousands of homes were destroyed, many roads were impassable, trains and buses were not running, and power and cellphones remained down.
Many people are forced to evacuate the area for

My Thoughts
Causes of the earthquake are from the earth plates shifting and moving into place under the ocean. Why do earthquakes happen? A sudden release of energy causes the seismic waves that make the ground shake.
What triggered the seismic waves to move the earth plate and shake the ground? Is it because we are changing the earth and causing these things to happen?
The world is always changing and new things are being invented that are maybe not be good for the environment that cause these things the happen.

After the earthquake there was a Tsunami. The Tsunami happened because the earth plates shifted under the ocean causing the water to move back into place and creating a giant Tsunami.
Or is it because the year 2012 is coming? What do you think?