GEOLOGY

Detailed explanation-1: -Plates rip apart at a divergent plate boundary, causing volcanic activity and shallow earthquakes; and. At a convergent plate boundary, one plate dives or “subducts” beneath the other, resulting in a variety of earthquakes and a line of volcanoes on the overriding plate.

Detailed explanation-2: -On land, volcanoes form when one tectonic plate moves under another. Usually a thin, heavy oceanic plate subducts, or moves under, a thicker continental plate. When this happens, the ocean plate sinks into the mantle.

Detailed explanation-3: -The movement of tectonic plates causes earthquakes and the formation of volcanoes, mountains, and ocean trenches. The majority of volcanoes on land occur at subduction zones-regions where two tectonic plates converge and the denser plate sinks beneath the less dense plate.

Detailed explanation-4: -Magma rises from the hot spots and erupts as lava through cracks in the Earth’s surface forming volcanoes. As a plate moves slowly across a hot spot, a chain of volcanoes or volcanic islands can form. The islands of Hawaii and Samoa were formed in this way.

Detailed explanation-5: -Tectonic plates are extremely large and can encompass both land and ocean. These tectonic plates interact with one another because of the Earth’s internal heat. This heat causes movement of material beneath the Earth’s crust and releases energy in the form of earthquakes and volcanic eruptions.