How Are Tsunamis Formed?


100 thoughts on “How Are Tsunamis Formed?

  1. Would have been nice to give a shout out to the @NOAAPMEL DART® (Deep-ocean Assessment and Reporting of Tsunamis) program http://nctr.pmel.noaa.gov/Dart/

  2. I seen a tsunami once. On a television some 500 miles away from the safety of a valley.

  3. Lol.No mention of HAARP….or planting nukes in the seabed. Remember…9/11…and then…3/11 Fukushima…This is disinformation at its best!!!

  4. All I want to know is what should I pack to be ready for a tsunami because the city I live has been overdue for a tsunami. So now it could happen anytime.

  5. I been in a tsunami and saw about 1000 tsunami and I do not like it

  6. at how many feet/meters close to the shore does the tsunami start to compress and grow taller?

  7. I really want to know more about tsunamis. I met a girl in Bali who lived I Japan and saw the Japanese tsunami. She had to move though cause your house got destroyed

  8. I think next Thursday there will be a earthquake here at California it will be the great California shake is going to be big

  9. That was really helpful.Thank you i got all the information i need. Unfortunately i have not seen a Tsunami

  10. Wrong when the underwater anything happens the water level goes over the water level gravity hits the centre creating water waves with power

  11. Tsunamis are caused by Earthquake, Landslide, Volcano and can cause by Meteorites

  12. Please explain to people how the energy at any point in a displacement generated wave decreases as it travels from the source. There are ridiculous people spreading scare stories of how the Canary Islands will fall into the sea in one quick dunk, and that the wave will destroy the East Coast of the US for up to 500 miles inland. They spread this scare story after admitting that the supposed mountain that will fall, is riddled with fractures, so it will most likely crumble into the ocean rather than fall as one giant chunk. The height of the displacement wave would depend on the amount of displacement and the interval of time of the displacement. In other words, you can drop ten pounds of pebbles into a pond, pouring them in over a span of 30 seconds, and you can drop a ten pound rock into a pond. The rock displaces the same volume of water as the pebbles would, but it does so instantly, and it generates a wave much larger than would occur from sprinkling the pebbles. Then explain to people that even that large wave decreases in height and energy as it expands, until it seems to completely dissipate as each point in the wave has less and less energy and height.

  13. They aren't tidal waves, they are seismic waves. They have nothing to do with the tide.

  14. this is very interesting but when you say it ,it sounds boring so you should say it more fun!!!!!!

  15. I’ve been in tsunami but my oldest brother died the rest of my family survived but almost everyone in the city died and the whole city was destroyed:(

  16. "Pebbles are created by rocks thrown in water." I never knew.

  17. 0:52 i thought he said the waves sucked, like it was bad, and it doesn't blow wind. XD

  18. i was interested in Tsunamis before i knew it had this name. i had a lot of intense and vivid nightmares as a child and tsunamiwaves on the beach with cliffs (so you cant run away from it) was what gave me fear of water for like four years. now i'm not afraid of it anymore (because i like swimming and diving deep in the swimming pool), but i do get those tsunami dreams more again as its one of, if not, the most reocurring dream i have out there. i knew about the name Tsunami after the Tsunamiwave of 2004 Indonesia. and since then my interest became huge of these things because i saw exactly what i experienced in my dreams although that from indonesian 2004 tsunami i saw on the news on tv. its not that i'm afraid of it anymore but i still have some of these intense tsunami dreams. it made me get more interessed in the subject. it can also be because i love natural disasters a lot lik vulcano eruptions, asteroid impact, tornados, hurricanes, and ofcourse.. tsunamis. but i do prefer not witness it in real life. it would be scary to be honest. and i do have a lot of fear with these dreams when they occur. those waves in my dreams were huge, more bigger than all Tsunamis i known, well, maybe not so big as the tsunami that wiped out a lot of the dinosaurs if the meteorite didn't already killed them.

  19. Here is some info. Tsunami waves are formed as the displaced water, which acts under the influence of gravity, attempts to find a stable position again. Undersea landslides, which can be caused by large earthquakes, can also cause tsunami waves to form as water attempts to find a stable position.

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