- 19, Jun 2020
- #1
Tsunamis are waves of long length that occur during strong underwater and coastal earthquakes or due to volcanic eruptions.
Due to the deformation of the bottom sections, the column of water resting on them also shifts, forming a wave.
Its height ranges from 1 to 5 meters.
Along the coast, it can reach 10 m, and in the bays - over 50 m.
Away from the coast, the waves, which are located on a wide multi-kilometer front, have a height of only 1-2 m, so they are not only not dangerous, but also practically invisible to ships.
Not without reason translated from Japanese “tsunami” means “port wave”.
About 1,000 cases of tsunamis are known, 100 of which completely washed off coastal settlements and all vegetation from the face of the earth.
To at least somehow reduce the consequences of this destructive force, breakwaters are built along the shores of the ocean, jetties, erect embankments, plant trees in a wide strip, create warning services, which are based on the advance registration of earthquakes by coastal seismographs.
The alarm about the approaching tsunami is transmitted to ships that urgently leave for the open ocean, otherwise they may be thrown far to land, as happened in 1883 after the eruption of the volcano Krakatau.
Along the coast, it can reach 10 m, and in the bays - over 50 m.
Away from the coast, the waves, which are located on a wide multi-kilometer front, have a height of only 1-2 m, so they are not only not dangerous, but also practically invisible to ships.
Not without reason translated from Japanese “tsunami” means “port wave”.
About 1,000 cases of tsunamis are known, 100 of which completely washed off coastal settlements and all vegetation from the face of the earth.
To at least somehow reduce the consequences of this destructive force, breakwaters are built along the shores of the ocean, jetties, erect embankments, plant trees in a wide strip, create warning services, which are based on the advance registration of earthquakes by coastal seismographs.
The alarm about the approaching tsunami is transmitted to ships that urgently leave for the open ocean, otherwise they may be thrown far to land, as happened in 1883 after the eruption of the volcano Krakatau.
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