четверг, 28 мая 2009 г.

Some facts about a tsunami

That underwater earthquake became the tsunami formation reason, it should reach almost 7 points under the Richter scale.

About 90 percent of all tsunami arise in Pacific ocean, accordingly, and tsunami photos in the majority become there.

Many tsunami are found out today still before they fall upon the earth that allows to reduce to a death minimum. Use of modern technologies, including seismographs and notification systems, provides comparative safety, the truth, does not allow to protect construction.

The term "tsunami" occurs from Japan, that is «a wave in harbour».

The tsunami begins, when huge volumes of water quickly move (because of the underground phenomena, look a photo), tsunami waves reach coast and destroy it.

Apparently on photos, a tsunami differs not only height, its waves also very long, the distance between crests reaches some honeycombs of km., that leads to the big time interval between 2мя the waves going successively, reaching till 1 o'clock.

In deep-water areas, tsunami can be in height only to 1 m. that does possibility them to find out on depth practically unreal.

How often tsunami occur? Despite set of a photo of a tsunami, in a reality it is the phenomenon happens much less often, than it is accepted to think. In each century it is fixed 6-7 large tsunami which have brought the big destructions though, of course, photos of a tsunami of small size become almost annually.

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