in recent tsunami in Indonesia, some witness saw a fireball just before tsunami & the other witness heard something like an explosion from underwater
2006-07-27 22:13:01 · 16 answers · asked by stupidzt 1 in News & Events ➔ Current Events
A tsunami (pronunciation /suˈnɑːmi/ or /tsuˈnɑːmi/]) is a series of waves generated when a body of water, such as an ocean is rapidly displaced on a massive scale. Earthquakes, mass movements above or below water, volcanic eruptions and large meteorite impacts all have the potential to generate a tsunami. The effects of a tsunami can range from unnoticeable to devastating.
It's natural.
2006-07-27 22:16:38 · answer #1 · answered by NA A 5 · 0⤊ 0⤋
Yes, (most of) the other answers are correct in saying that a tsunami is caused by an underwater earthquake. The "fireball" that may have been seen could possibly be lava or some other form of earth substances that rose during the shifting of the plates under the water's surface.
2006-07-27 22:20:29 · answer #2 · answered by catalina 1 · 0⤊ 0⤋
Tsunami is a very large ocean wave triggered by underwater earthquake, volcanic activities or landslides. These waves have unusually long-wavelength in excess of 100 kms, generated in the open ocean and transformed into a train of catastrophic oscillations on the sea surface close to coastal zones. These normally occur in Pacific Ocean and are highly unexpected surrounding the Indian subcontinent.
In the open ocean, the tsunamis are harmless because of their small height (typically 30-60 cms.). However, as they race onto shallow water regions and pass into continental coasts their speed diminishes which results in increase in the wave height in order to conserve the total energy. Typical speeds in the open ocean are of the order of 600 to 800 km/hr. The tsunami's energy flux, which is dependent on both its wave speed and wave height, remains nearly constant. When it finally reaches the coast, a tsunami may appear as a series of breaking waves.
Therefore, it is natural.
2006-07-27 22:27:17 · answer #3 · answered by Ish 2 · 0⤊ 0⤋
tsunami is the water displacement after an underwater earthquake . . . so it's basically a result of the earthquake itself . . the water is displaced and sends out huge waves that don't diminish untill they hit the shoreline . .
2006-07-27 22:18:26 · answer #4 · answered by Joy L 4 · 0⤊ 0⤋
Natural disaster...and it can be caused by earthquake underwater, by a giant land slide, or by two tectonic plates moving towards each other...one sliding slightly on top of the other.
2006-07-27 22:23:00 · answer #5 · answered by justmemimi 6 · 0⤊ 0⤋
under-see earthquakes cause tsunamis... !!
People always try to make somebody responsible for bad things.. George Bush would be a good idea to blame.. but It could also be the Muslims or also often used the Jews....;-)) do not be stupid ..
see: http://en.wikipedia.org/wiki/Tsunami
2006-07-27 22:21:37 · answer #6 · answered by answer-o-mat 2 · 0⤊ 0⤋
explosion my butt, tsunamis are caused by earquakes underwater. the earht shifts and pushes a LARGE amount of water, and the tsunami is the result
2006-07-27 22:16:56 · answer #7 · answered by redirus92 3 · 0⤊ 0⤋
Its a natural disaster..
Only idiot people will think that America or Israel make the tsunami..
2006-07-28 17:21:09 · answer #8 · answered by Anonymous · 0⤊ 0⤋
It is something caused by undersea quakes or like earthquakes which tigger the sea and causes to flood huge areas.It must be due to tectonic activities that have occured before ..
2006-07-27 22:19:23 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Yes it is a conspiracy. George Bush has a tsunami machine.
2006-07-27 22:16:15 · answer #10 · answered by Anonymous · 1⤊ 0⤋