Earthquake measuring 9.0 on the Richter scale which menggucang Japan last March reminds us how the planet can be very dynamic. As students are taught in school keraka earth is not solid proverbial a puzzle board consists of dozens of pieces of the puzzle board pieces that float, called tectonic plates. These plates constantly push each other and mutually gesk cause thousands of seismic events per day. Part of neglected until then the major events, like earthquakes in Japan, tsunami or earthquake in Haiti in 2010.Wilayah the world's most active tektoniknya activity is along the edge of the Pacific plate, which meruakan a massive tectonic plates that cover most of the Pacific ocean. Known as the ring of fire pacific edge of the plate is Temat for 75 percent of active volcanoes and inactive. This region is also the world's most earthquake occurred, 80 percent of which is a massive earthquake. The earthquake and tsunami that meluluhlantahkan japan happen when part of the Pacific plate pushing the North American plate. When the two plates are colliding, the North American plate terdorog to ata, shifting huge amounts of water which then causes a tsunami. Sekalipn it sounds odd, half the land area in the north Japan, Honshu: and the whole region in the northern island, Hokkaido: located in the North American plate, on the corner of tectonic torch at least it could mean that the Japanese meruakan part of North America.