Tsunami only takes about 2 hours to attack the Central Coast

That is the judgment in the 'possibility of tsunami scenario in Vietnam' of the Earthquake Reporting Center and Tsunami Warning (Institute of Geophysics).

The tsunami forecast is not entirely simple, because it depends very much on forecasting geological hazards that occur on the sea and oceans such as: Earthquake forecast, continental fault . On the other hand, due to the process The spread of tsunamis is very fast (often, the speed of spread can reach hundreds of kilometers per hour), so most tsunamis cause huge losses of people and property to residents living in coastal areas. .

According to the Ministry of Natural Resources and Environment, the level of danger of earthquakes in Vietnam will increase and take into account the development of the country. In fact, in Vietnam, there were 2 earthquakes of 6.7 to 6.8 magnitude in the North in the last century (the years 1935 and 1983 destroyed a large area. 1,300 km ² killed 30 people.

Tsunamis only take about 2 hours to attack the central coast of Vietnam.Illustration

According to Assoc. Prof. Dr. Nguyen Hong Phuong (Center for Earthquake Reporting and Tsunami Warning, Institute of Geophysics), on the basis of studying seismic and geodynamic characteristics in Southeast Asia and Thailand Binh Duong, scientists of the Institute of Geophysics have identified tsunami source areas that can directly threaten the Vietnamese coast in the East Sea and adjacent seas.

Also according to the research results of the Institute of Geophysics, due to its quite specific position, the coastal area of ​​Vietnam is likely to suffer mainly from tsunami source areas located in the East Sea. In the East Sea area, the source area of ​​the North Manila Sea Trough is considered the most dangerous source of tsunami for the coast of Vietnam. The result of calculating the time of tsunami propagation shows that after arising on this source area, tsunamis only take about 2 hours to attack the coast of Central Vietnam.

Also at the conference, Mr. Huynh Van Thang, Deputy Head of the Steering Committee for Flood and Storm Control and the City of Da Nang said: 'The threat of tsunamis in Danang could be the cause of a meteorite collision in the East Sea, mountains. fire, land slide, earthquake in the east sea area from Taiwan island to the Philippines. According to experts in this field, the possibility of tsunamis on the Vietnamese coast is not large but actually has this potential. If tsunamis occur, the area most affected is the Central Coast (heaviest from Da Nang to Quang Ngai). In Danang, the entire coastal line, along the Han, Vinh Dien, Cam Le, Cau Do and Tuy Loan rivers are the areas most likely to be affected. "

Mr. Thang also added: 'Being aware of the seriousness of the disaster, we are increasing the sea dike investment program, the locals build an alarm system, maintain the online regime all day and night to ensure timely detection of earthquake-tsunami hazards.

According to the report at the meeting of the Center for Marine Sciences (Vietnam General Department of Sea and Islands), sea level fluctuation is a phenomenon of sea level rise and fall compared to the average value of many years and division. into two basic groups: the sea-level fluctuation group has a cycle caused by the gravity of the moon and the sun whose representative is the tidal oscillation; the second group with no cycles is usually caused by changes in wind, air pressure on the sea surface or due to heterogeneity in sea density .