Pacific Ring of Fire or Earthquake Belt...
Hope I can help
The answer is that earthquakes and volcanoes are most frequent along Tectonic plate boundaries, these are the natural pieces that the continents and oceans are on.
Because it could be by the plates that are active and have more frequent earthquakes.
the pacific coastal region
If you mean "where" earthquakes and volcanoes are most likely to occur it is in what's called the "ring of fire" which is the coastal ring around the Pacific Ocean.
fault
Tsunamis are triggered by earthquakes due to vibrations.
Hawaii and some coastal islands
It depends on the natural disaster. Volcanoes and earthquakes only happen on areas near a fault line. Tornadoes are only found inland. Tsunamis, floods, and hurricanes are found in coastal areas.
fault
There are normally more earthquakes in coastal areas because they are on the fault lines between the different techtonic plates.
Tsunami are caused by earthquakes.
i am not sure. Most of the largest earthquakes in Japan are caused by subduction of the Philippine Sea Plate or Pacific Plate, with mechanisms that involve either energy released within the subducting plate or the accumulation and sudden release of stress in the overlying plate. Earthquakes of these types are especially frequent in the coastal regions of northeastern Japan.