More than one ocean motion determines tsunami size
Giant wave forecasts need to take into account horizontal motion on sloped seafloors
By
Thomas Sumner
7:00am, April 14, 2017
Earthquake-powered shifts along the seafloor that push water forward, not just up, could help supersize tsunamis.
By combining laboratory experiments, computer simulations and real-world observations, researchers discovered that the horizontal movement of sloped seafloor during an underwater earthquake can give tsunamis a critical boost. Scientists previously assumed that vertical movement alone contributed most of a tsunami’s energy.
https://www.sciencenews.org/article/more-one-ocean-motion-determines-tsunami-size
