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If the tsunami is caused by an earthquake, a slight rumble can be heard, and the ground might shake. As the waves approach shore, the water near the shore will recede dramatically, leaving fish, seaweed coral and such like. (following a 'sucking* sound'). A clear rumble should be heard. The fast moving waves will start to get higher as the seafloor gets shallower near the coastline. This forms a 20m wall of waves (a tsunami) and the waves will crash onto shore and rush inland. Sometimes, warnings are given to the country and surrounding countries. *Note that 'sucking' means being sucked in, and is not a vulgarity.

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15y ago
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13y ago

The signs are:

  • an earthquake may be felt
  • large quantities of gas may come up as bubbles, thus making the water look like it is boiling
  • waves may feel unusually hot
  • water may smell like rotten eggs or petrol
  • the water will sting the skin
  • a thunderous boom and roaring of a jet plane will be heard
  • the water will recede to a considerable distance
  • sometimes, the top of the wave will look red
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14y ago

If the tsunami is caused by an earthquake, a slight rumble can be heard, and the ground might shake. As the waves approach shore, the water near the shore will recede dramatically, following a 'sucking* sound'. A clear rumble should be heard. The fast moving waves will start to get higher as the seafloor gets shallower near the coastline. This forms a tsunami and the waves will crash onto shore and rush inland. Sometimes, warnings are given, although it is not a natural sign. *Note that 'sucking' means being sucked in, and is not a vulgarity.

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Q: What are some natural signs of an approaching tsunami?
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