The most dense layer of the atmosphere is the troposphere is the most dense layer because it is at the bottom of the atmosphere. The troposphere is where all our weather happe â¦ ns. It also has the highest air pressure. But more specifically, the earths atmosphere is most dense at the surface.
Earthquakes on faults like these may cause tsunamis in the Puget Sound region. 'Deep' faults Deep faults can occur where two tectonic plates collide and one of the plates is forced beneath the other.
tsunamis are most likely to occur along areas of high tectonic activity which is the trigger of tsunamis in the first place areas of high tectonic activity are near the edge s of plates like the pacific north american plate and the indian plate