Thanks everyone for your comments! I wish you a really nice weekend! :)

Some examples: The earthquake triggered a fault in the electrical system. The fault triggered a break in communication. After the the faults were found, a response was initiated.

The word, initiate, means to begin or commence. We can initiate a conversation when we take the first step to talk to someone. However, our attempts might fail. We might initiate a conversation with someone but it goes nowhere if they don't respond. The word, trigger, means an act that sets a series of events in motion. Saying, a simple "hello" to someone might trigger a long and fruitful conversation. If you are talking about a fault or fault line that is a break in the layers of rock , you can say, that the pressure triggered an earthquake and series of aftershocks. Hope this helps

both mean almost the same thing. "Initiated" usually means you did it on purpose and "triggered" means you did it accidentally or automatically. Examples: "someone was murdered so the police initiated an investigation" "The fire triggered the alarm system in the building" So it depends on the context but a fault is probably usually "triggered"

If a fault in a system was caused by some factor or circumstance, I think “triggered” works. Example: “Unusually heavy website traffic triggered a fault in the system.” “Triggered” is better than “initiated” because it (usually, not always) implies causation by a THING or a CIRCUMSTANCE in an unexpected way; “initiate” usually (not always) implies triggered by a person as a result of an intentional decision.