what changes happen to fault zones of many years?

Answer 1

http://www.physicstoday.org/pt/vol-54/iss-6/p34.html read this it explains in detail about changes happen to fault zones over time.

my explanation: depending on the fault boundary, for example the San Andreas (transform) fault just in the course of 3 years you see difference in land form, hence all of the earthquakes and tremors . ex. if you lived on one side of this fault and your neighbor lived just across the street on the other side of the fault boundary, eventually you will be down the street from each other.

Divergent fault line like the mid-ocean ridges in time break apart causing the plate to converge into other adjacent plates ex. as the Cocos plate diverges away from the Nazca Plate (west side of South America) and the Pacific plate, it converges into Central America which starts the Caribbean plate. a map on how it works http://web.ics.purdue.edu/~braile/edumod/platepuzz/platepuzz.htm scroll down to figure 6.