I chose this article because it was interesting and i wanted to know more about tsunamis. Tsunamis, which can travel over the ocean surface from many hundreds of miles, can be generated when chunks of the planet's crust separate under the seafloor, causing an earthquake. Here's what happens: One slab of lifting crust essentially rapidly acts as a giant paddle, transferring its energy to the water.Tsunamis can also be caused by volcanic eruptions, underwater detonations and even landslides. The resulting waves are hard to predict for several reasons. Nobody knows how a quake has affected the seafloor until hours, days or even months after the event. And a tsunami is almost unexpected on the open ocean,which rises to full velocity only as it nears the shore. Not all seafloor earthquakes will generate a tsunami — if the friction between the crustal plates occurs very deep below the ocean floor or move in a way that causes a minimal paddle effect, a tsunami isn't as likely to form.
No comments:
Post a Comment