Plate Boundaries
Convergent plate
A convergent plates form where two plates collide and the denser plate sinks below the more buoyant plate creating stress called compression and this process is what creates mountain ranges, ocean trenches, and volcanos. A Disaster that happened because of these plates is Mount St. Helens a volcano located in Washington Cascades blew its top on this day, May 18, 35 years ago, it killed 57 people and thousands of animals and leveled 200 sq. miles of forest.
Divergent plate
Divergent plates from where two plates separate like the mid-ocean ridge, and lava erupts, cools, and from new oceanic crust. They also exist in the middle of a continent they pull continents apart and from rift valleys. The stress of Divergent plates is tension and the landforms created by tension are Mid-Ocean Ridge, and Continental Rifts like the East African Rift also it can cause earthquakes and tsunami Great Sendai Earthquake in Japan in 2011.
Transform plate
A transfrom plate forms where two plates slide pass each other called Fault Zones and Transfrom Faults. As they move pass each other they can get stuck a cause stress called shear stress and when the stress builds up enough it will break causing a rapid release of energy as earthquakes. The Great Los Angeles earthquake destroyed at least a quarter of the city and killed over 80,000 people.