After the eruption of the undersea volcano in Tonga, many Japanese people are worried that Mt. Fuji on their doorstep will also erupt, especially in the recent period, Mt. Fuji seems to have become more active, and the surrounding earthquakes have become more frequent, which is also more worrying. So, if Mt. Fuji really "wakes up", how much impact will the eruption have on the mainland?
Is Mt. Fuji really "waking up"?
In terms of time, Mt. Fuji has been asleep for 300 years, and many Japanese experts believe that Mt. Fuji now has the possibility of erupting again, and judging from its recent activity, it may erupt at any time.
For example, the South Korean media recently reported that through the investigation, it was found that the fire mouth of Mt. Fuji increased by nearly 6 times, what is the "fire mouth"? In simple terms, it is for the process of volcanic eruption, magma from the inside gushing out to the ground outlet, the production of fire vents, often related to the process of volcanic activity, the formation of cracks, naturally, Mt. Fuji fire vent increased, it also means that the internal energy accumulation is full.
However, although the Japanese have always been very worried about the eruption of Mt. Fuji, according to the study of Mt. Fuji, Japanese scholars believe that the eruption cycle of Mt. Fuji is about 900 years of a violent eruption, so from the perspective of time, it will take at least 500-600 years or so to wait until Mt. Fuji "wakes up".
And for active volcanoes, in fact, the interior has been active, the surrounding earthquakes and other phenomena, there is nothing strange, for example, the Yellowstone volcano in the United States, but also many years ago, was considered to be likely to erupt at any time, and in 2014, there was once because of the internal high temperature, melted the surrounding oil road, but now it seems that there is still no sign of eruption.
Therefore, the possibility of a recent eruption of Mt. Fuji is not very likely, and the reason why the Japanese are worried is mainly because once Mt. Fuji erupts violently, it may sink Japan, thus leaving the Japanese homeless, coupled with the recent eruption of the tonga submarine volcano, which also makes the Japanese "empathetic", and naturally it will become more worried.
So, assuming that Mount Fuji really erupted, would it have an impact on the mainland?
We all know that although Tonga's submarine volcanoes are full of power, the impact on the continent is not large, mainly because Tonga is in the southern hemisphere and is too far away from the mainland.
But Japan's Mt. Fuji is different, after all, we are neighboring countries, take Shanghai, the distance from Japan is less than 700 kilometers, then, once Mt. Fuji erupts, will the mainland also suffer?
In general, the impact after volcanic eruptions is mainly concentrated in lava, volcanic ash, tsunamis and other aspects. First look at the erupting lava, which will go directly into the sea, and then cool after encountering the seawater, forming a solid piece at sea, and there is no floating to the mainland.
The second is volcanic ash, which pollutes the mainland's air, mainly depending on the direction of the atmospheric circulation. From the perspective of location, the mainland is located on the west side of Japan, and the direction of the atmospheric circulation in Japan is mainly moving towards the east, so it is unlikely that volcanic ash will pollute the mainland.
Finally, the transoceanic tsunami caused by the eruption of Mt. Fuji, this time, although Tonga and the mainland have a distance of tens of thousands of kilometers, but the transoceanic tsunami still reached the southeast coastal area of the mainland, then, it seems that "close at hand" Mt. Fuji, once erupted, will the tsunami cause great damage to the coastal area of the mainland?
This possibility does exist, but it depends on the scale of the eruption of Mt. Fuji, if it reaches level 6-7, then, let alone the continent, the impact will basically be global, not just the continent.
In addition, it should be noted that if Mt. Fuji does usher in a super-eruption, it is necessary to worry about whether it will trigger a chain reaction, so that the mainland and Mt. Fuji in the same volcanic belt of the volcano, with the same eruption.
For example, Changbai Mountain, located in the northeast region of the mainland, everyone knows that Changbai Mountain is a famous scenic spot, but they do not know that in fact, Changbai Mountain is also a dormant volcano, and there is a danger of eruption in the future.
However, this time, the Tonga submarine volcano is actually located in the volcanic belt, but its eruption has not caused a chain reaction, so the possibility that Mt. Fuji will erupt with other volcanoes is not very likely.
Speaking of which, there is another question to worry about: If the Mt. Fuji super-eruption really hits Japan hard, should the mainland agree to their arrival when many Japanese want to take refuge in China? Simply put, should the mainland accept Japanese refugees?
This may be a question that needs to be considered in advance, after all, even without Mount Fuji, Japan may sink because of rising sea levels or earthquakes, so how should we view the survivors in Japan? What do you think?