Sanya was affected by the typhoon, and sea-related tourism was suspended. Could a typhoon cause a tsunami?

Sanya was affected by the typhoon, and sea-related tourism was suspended. Could a typhoon cause a tsunami? Ladies and gentlemen, this question is very good. The good side is to state the facts objectively and fairly, without any prejudice. Moreover, the problems it involves belong to the topic of interpersonal relationship and are relatively grounded. In addition, the second half of this question is of a popular science nature. Bian Xiao has always insisted that writers should explain the facts impartially, which is our conscience and responsibility. In addition, writing has a power that cannot be ignored. Therefore, it is also the writer's duty to popularize science, spread knowledge and resolve misunderstandings. Then based on the above principles, Bian Xiao will elaborate on this issue.

According to the forecast of the South China Sea Meteorological Observatory, the tropical depression in central Hainan intensified to the No.8 typhoon (tropical storm level) this year at 17 on the 22nd. At 8 o'clock on the 23rd, the center is located on the sea about 2 10 km southeast of Sanya, and will land in the coastal area from Lingshui to Sanya from the night of 24th to the morning of 25th, or it will pass the southern coast of Hainan Island. Affected by it, there will be an obvious wind and rain process in Hainan from 23rd to 25th. The Hainan Provincial Meteorological Bureau continued to issue a typhoon three-level warning at 6 o'clock on the 23rd. Affected by the typhoon, Sanya closed its beaches and suspended sea-related tourism. Then the question is, is it possible for a typhoon to cause a tsunami?

Bian Xiao believes that underwater earthquakes, volcanic eruptions, underwater collapses and landslides may all trigger tsunamis. When there is an earthquake at the bottom of the sea, due to the power of seismic waves, the sea water fluctuates violently, thus forming a powerful wave, which keeps moving forward and inundates coastal areas one by one. This kind of disaster is called tsunami. Typhoon does not belong to earth activities such as underwater earthquake, volcanic eruption, underwater collapse and landslide. It is only a meteorological disaster, so it will not cause a tsunami, but only a storm surge.

So what is a storm surge? According to experts, storm surge is a catastrophic natural phenomenon. Due to severe atmospheric disturbances, such as strong winds and sudden pressure changes (usually referring to disastrous weather systems such as typhoons and extratropical cyclones), the sea level in the affected sea areas greatly exceeds the normal tidal level. It is called storm surge. It can also be called "storm increasing water", "storm tsunami", "meteorological tsunami" or "tidal wave". According to the nature of storms, storm surges can usually be divided into two categories: typhoon storm surges caused by typhoons and temperate storm surges caused by temperate cyclones.

Typhoon storm surge is more common in summer and autumn. Its characteristics are: fierce, fast, strong and destructive. Typhoon storm surges occur in all marine countries and coastal areas affected by typhoons. Temperate storm surges mostly occur in spring and autumn, and also occur in summer. Its characteristics are: the process of increasing water is relatively stable, and the height of increasing water is lower than that of typhoon storm surge. It mainly occurs in mid-latitude coastal areas, mainly distributed in the North Sea coast of Europe, the east coast of the United States and the northern coastal areas of China. To sum up, it is true and necessary for Sanya to suspend sea-related tourism due to typhoon. As for whether the typhoon may cause a tsunami? My answer is no!