Scientists from the University of Tokyo and Brunel University in London show that the scale of the disaster can be much greater. Researchers have determined that worse results are avoided since waves that are between 100 and 150 meters in length do not hit nearby shores.
Dr. Mohammad Heidarzadeh, a civil engineer from Brunel University, who pioneered the study, said that after the eruption of volcanoes, the scattered substances caused an increase in the sea, and that Anak Krakatau also created 100 m high waves.
This height of the wave had fallen to 80 m when it hit a deserted island, mainly due to the frictional force and gravity between the seabed and the tsunami wave.
Dr. Mohammad Heidarzadeh from Brunel University said, ÔÇťFortunately, no one lived on that island. However, if there was a community near the volcano, it would be 50 to 70 meters high when the height of the tsunami hit the shore within 5 km
This statement of Dr. Heidarzadeh is based on previous events. An explosion that occurred in Krakatau in 1883, where fewer people lived on the coasts, caused waves 42 meters high. The tsunamide occurred at that time, killing 36,000 people.
The data obtained by the researchers and the article was recently published in Ocean Engineering. The new analysis used data from sea levels in five regions affected by the tsunami that erupted after the eruption of the volcano. These data were obtained from wave indicators measured by the Indonesian government. The data were used to validate the model that simulated tsunamis on the computer.
Scientists say it is extremely important to verify the computer model with real data in this way. Such studies are important for identifying and arranging habitats in areas such as Indonesia where earthquake and tsunami risk is high. During the tsunami in 2018, which focused on the study, more than 2000 people lost their lives. The study can minimize the number of such casualties.
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