The pictures of the tsunami that hit japan after the recent 8.8 magnitude earthquake in Kamchatka, russia are spine-chilling. After the earthquake in russia, a tsunami warning has been issued in many countries of the US and the Pacific region. According to this alert, waves up to 3 meters high can rise. But the question is why does a tsunami occur after an earthquake? Can it be detected in advance, let's find out.
When does a tsunami occur?
Tsunami is a natural disaster that often occurs due to powerful earthquakes under the sea or near the coast. When there is a movement in the tectonic plates under the sea, it causes an earthquake and the risk of tsunami increases due to the intensity of the earthquake. But not every earthquake causes a tsunami. Let us tell you that the risk of tsunami after an earthquake is higher in those countries which are located on the seashore. When an earthquake of a large magnitude such as 7.0 or more occurs in these countries, it causes a strong disturbance on the sea floor. This disturbance creates huge waves in the sea which are called tsunami.
What is the main reason for tsunami?
Tsunami waves are different from normal sea waves. tsunami waves are much higher than normal sea waves and move towards the coasts at a high speed, that is why there can be devastating effects in coastal areas. When an earthquake occurs on the sea floor, it pushes the water up or down rapidly, creating huge waves. These tsunami waves can travel at a speed of 500 to 800 kilometers per hour in the sea. The danger of tsunami is not limited to earthquakes only. Volcanic eruptions, landslides in the sea or meteorites can also cause tsunamis, but earthquakes are the most common cause.
Can tsunamis be detected in advance?
Like most tsunami-generating earthquakes, scientists cannot predict when and where the next tsunami will strike. But the tsunami Warning Center does provide information about which earthquake can cause a tsunami. Experts say that along with warning systems, people's awareness is also very important to protect themselves from tsunamis. If you are in a coastal area and feel an earthquake, immediately go to a higher place.
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