Answer:
The fault in Klamath falls involved a pulling-apart motion.
Step-by-step explanation:
The series of faults around Klamath, Oregon are normal faults of a type known as graben faults. This means that the tension and stress exerted on the terrain and the resulting pulling motion cause alternating blocks of terrain to sink below the surrounding blocks.
This effect is produced in the presence of faults which run parallel to each other, the case in southern Oregon. The type of terrain that is left by this normal fault activity features trenches and ridges.