Why is Japan susceptible to earthquakes and tsunamis? Explain using plate tectonics

I believe that this is due to how Japan is near one of the plate boundaries or mid-ocean ridges, where it's easier for a tsunami (from the ridges) to accelerate its speed and for an earthquake (from the plate boundaries) to collide or interact in a myriad of ways. I know that this wasn't so specific, as you have to find the name of the ridge or plates involved in this type of action.