The existence and movement of tectonic plates is natural phenomena that are unnoticeable. However, other volcanic and vulcanic land forming processes such as magma generation, metamorphism, faulting, folding, earthquake, igneous intrusions, and volcanic actions are usually as a result of plate tectonic activities (Frankel 54). Another evidence for the existence and movement of plate tectonics is the existence of six large pieces (six continents) and other twenty other small pieces such as Hawaii, Lanai, Oahu, Niihau, Molokai and Kahoolawe (Frankel 54). Scientists hypothesize that plate tectonic movements began breaking a single continent land mass into smaller and bigger pieces in about 200 million years ago (Monroe 36). Convectional currents originating deep inside the Earth pushed and pulled these plates at the surface creating a diverging plate boundary. A plume of hot magma originating deep within the mantle then pushed the crust creating pressure that caused the single continent to split and separate (Monroe 37). Other types of plate boundaries include convergent, transform and plate boundary zones.
In conclusion, the Earth’s crust is made up of a series of plates that are in constant movements either away or towards each other. Most of the volcanic eruptions and earthquakes occur near or along tectonic boundaries. This is because these processes are caused by melting, pushing, scraping, and pulling of the Earth’s surface along tectonic plate boundaries.
Monroe J. S, Reed W, Richard H. Physical Geology: Exploring the Earth; [the Wrath of Hurricane Katrina; Could You Survive a Tsunami?; Catastrophic Earthquakes; Global Warming]. Belmont [u.a.: Thomson, 2006.