They are called a Plate Boundaries :)
Beacause plates, at tectonic, boundaries shift against each other.
The tectonic plates are constantly moving around and if (or even when) they hit each other they cause earth quakes and even volcanoes.
Any area where two or more tectonic plates do not touch each other is a not a tectonic plate boundary.
Tectonic plates shifting around while bumping into another tectonic plate. When the plates slide pass each other, it creates a transform boundary which makes earthquakes.
The plates are either moving past each other (transform boundary), toward each other (convergent boundary) or away from each other (divergent boundary). In some cases when there is a convergent boundary, one plate will be subducted under the other plate. During this process and the process occurring at a transform boundary, the plates don't slide easily past each other because they are jagged. The plates can get locked. Stress continues to build. Eventually, the stress becomes so great that the plates "pop" free. When that happens, there is a tremendous amount of energy released in the form of an earthquake.
The place where two tectonic plates move away from each other horizontally are called divergent plate boundaries.
Fault lines
Tectonic Plates move by trying to push past each other and by trying to slide past each other.
transform boundary
Anywhere there are tectonic plates, and when two tectonic plates hit each other
An earthquake takes place, because there are tectonic plates which sometimes crash into each other, some places are more affected then others because some places are closer to the tectonic plates then others.
tectonic
No. When tectonic plates move away from each other they can cause an ocean to spread.
When tectonic plates move and grind against each other, this is an earthquake. If the moving of tectonic plates were to occur beneath the ocean's surface, the result would be a tsunami.
The tectonic plates
Earth is made up of many tectonic plates. When these plates shift, earthquakes happen. The tectonic plates are always moving, but most of the earthquakes are tremors (depends on how close you are to the place the tectonic plates are shifting).
At tectonic plate boundaries, earthquake zones, and the edges of tectonic plates.