I think is is important to remember there are literally thousands of earthquakes daily, the majority of which you will not feel (have little impact on anything). The evaluation of an earthquake works on a Richter Scale, which is logarithmic such that a magnitude 2 earthquake is much different than a magnitude 3, although they both do sound scary, there isn't much harm until you get to about a magnitude 5 or larger, which is extremely rare.
Lets say that those plant of yours wont trigger out those quakes but as i have read that this is located on the ring of fire.There are really thousand of earthquakes but most likely happen on
seabed.It do really give out no or less impact but since this place is on the ring of fire then there would be always the possibility of Magnitude 5 or higher quakes to happen.