Final answer:
Volcanic eruptions are another result of the collision and subduction of tectonic plates, occurring when an oceanic plate subducts under a continental plate, leading to the formation of volcanoes and associated eruptions.
Step-by-step explanation:
Another phenomenon that results from the collision and subduction of tectonic plates, apart from earthquakes, is volcanic eruptions. When two tectonic plates collide, especially when an oceanic plate subducts under a continental plate, it causes the subducted plate to melt due to the high temperatures and pressures in the mantle. As a result, magma (molten rock) is generated and often pushes its way up to the earth's surface, forming volcanoes and leading to volcanic eruptions.
This process is also associated with the creation of mountain ranges and, in some cases, the formation of island chains like the Hawaiian islands. Tectonic plates movements are a fundamental aspect of the earth's dynamics, leading to the continuous reformation of the earth's surface.