Johann Low

日曜日, 1月 02, 2005

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If anyone thinks the recent tsunami is a monster, they have seen nothing yet. From a documentory on tsunamis which are now showing on CNA, the real monsters of tsunamis are not created by earthquakes. The most powerful tsunamis created by earthquakes can only reach abt 10 metres in height. The mega tsunamies caused by massive landslides. It sound unbelievable but it is true. Landslides of moutains which throw millions tonnes of rock into the sea at high velocity can cause mega tsunami up to half a kilometer - 500m high. This is higher than any of the skycrapers to date (i think) .

It has happened before. A piece of landmass 10 times the size of Mount Everest fell into the sea before causing a mega tsunami of a few hundred metres high. What is a mere 10m tsunami compared to these mega monsters? Such massive lands occurs once in a few thousands yrs. It happens after the ocean has eroded the base of a small island (created by volcanic eruptions)　Such islands have very steep lands which are cut by rain or the sea. when the land collapse, a few million tonnes of rock are slammd into the sea at high speed and high impact igniting a a mega tsunami.

Tsunamis can occur frm earthquakes on the other side of the globe. These tsunamis can home in on a specic piece of land. From the source, they can be disperse and then merge into one gigantic wave causing devasting effects.

To think such power exists in the liquid we call water, in the liquid which we need to consume everyday to survive.

elow at 10:52 午後 |

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