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 occur as a result of seismic activity earthquakes at tectonic plate boundaries specifically ocean trenches or mid ocean ridges here earthquakes and volcanic eruptions under the water will cause the displacement of massive amounts of water and hence a tsunami