earthquakes reflection 5- tsunamis

most tsunamis generated by

subduction zone earthquakes, vertical crustal movement of seafloor

tsunami wave propagation

as water depth lessens, waves slow down, shorter wavelength, larger amplitude

tsunami velocity, wavelength, and amplitude depend on

water depth

tsunami wave vs wind generated wave

wind wave: crest and slam down, lose energy; tsunami wave: consistent wall of water, far inland

causes of tsunamis

tectonic, landslide, volcanic, meteorological

inundation

how far inland

runup

how high up a slope a tsunami gets

pacific tsunami warning center

detect large earthquakes, predict and measure tsunamis, pressure sensors on ocean floor detect changes in wave height

As a tsunami wave approaches the shore, the velocity ________ and the amplitude ________

decreases; increases

what does pacific tsunami warning center use to detect tsunamis

wave buoys

why tsunamis less noticeable in deep water

In deep water, tsunami waves have a very small amplitude. Small amplitude = small wave