World Tsunami Awareness Day: Tsunamis are huge waves that come suddenly in the ocean and can cause devastation in coastal areas. These waves are usually caused by undersea earthquakes, volcanic eruptions or landslides. World Tsunami Awareness Day is celebrated every year on 5 November to make people aware about the dangers of tsunami and teach them how to stay safe. In such a situation, let us know how long before a tsunami is detected and how high the sea waves can rise during this time.
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To what height can sea waves rise?
The height of tsunami waves can vary. In the open sea, these waves are of very low height and are difficult to see, but when these waves reach near the coast, their height increases very rapidly. In some cases, tsunami waves can be 30 meters or more high.
How long can we know before a tsunami arrives?
Many types of systems have been created to give warning before the arrival of tsunami., Undersea sensors are installed in these systems, Involves seismometers and satellites, These systems track changes in the ocean and detect the possibility of a tsunami., Apart from this, before the arrival of tsunami, there can be a sudden change in the sea water level and these changes are measured with the help of sensors., At the same time, satellites can track changes in the sea surface and issue tsunami warnings.,