The eruption of Tonga volcano on January 15 gave the world a glimpse of the true power of the volcano, which also attracted the world's attention to the volcano, in fact, there are nearly 3,000 volcanoes in the world, 660 on the mainland alone, but most of them are extinct volcanoes, only 5 active volcanoes and 6 dormant volcanoes.
Our neighbor to the east, Japan, is a real active volcano power, with a small land area but more than 80 active volcanoes, the most famous of which is Japan's sacred mountain, Mt. Fuji.
Mt. Fuji is a giant volcano, in recorded history, Mt. Fuji has erupted many times, from the 8th century to the present 1200 years in more than 1200 years there have been up to 17 eruptions, the most recent eruption is only 300 years ago, or it has erupted 17 times in 900 years, equivalent to two eruptions every hundred years, and now it has been dormant for more than 300 years, if the eruption of its scale will be very large. The latest news said that the spitfire mouth of Mt. Fuji has increased by 6 times in a short period of time, from the original 44 to nearly 300 today, and some experts say that it may erupt at any time.
From the Korean media Channel A TV reported on January 15 that the magma under Mount Fuji in Japan has enough power to accumulate and is active, recent surveys from Japanese geologists show that the number of fire vents on Mount Fuji is close to 300, an increase of nearly 6 times compared with a year ago, and Fujii Toshiji, director of the Fujisan Institute of Science in Yamanashi Prefecture, Japan, does not shy away from saying that Mt. Fuji in Japan may erupt at any time, and it is not surprising that it will erupt immediately. And it has been sleeping for too long, and once the power it has accumulated for 300 years bursts out, it must be quite shocking.
Before the arrival of volcanic eruptions and large-scale earthquakes, there are usually small-scale frequent earthquakes, and last year (2021) December 3, there were many earthquakes around Mt. Fuji in Japan, at 2:18 a.m. and 23:00 a.m. local time on the 3rd, 6:37 a.m., 9:28 a.m., the East Five Lakes area of Mt. Fuji in Yamanashi Prefecture has successively occurred 4, 3.6, 4.9, 5.4 magnitude earthquakes, indicating that the lava activity and geological conditions under Mt. Fuji are quite active. At that time, Japanese geologists said that it could be seen as a sign of a possible eruption of Mount Fuji in Japan.
After the eruption of the Tonga volcano energy can be released, the energy accumulated in a small area of the southwest of the Pacific Plate dissipates, which will make the energy accumulation in other parts of the Pacific Plate appear more prominent, which may accelerate its release, so although the eruption of the Tonga volcano can not directly affect Mount Fuji, it may also accelerate its eruption process, and some geological institutions have recently measured that the pressure in the current Mount Fuji volcano has accumulated to 1.6 megapascals, which is far more than previous observations, and is also considered to be an important indicator of the imminent large-scale eruption of Mount Fuji.
So if Mt. Fuji erupts, what will be the scale of this tonga eruption? In fact, Mt. Fuji is a very large volcano, we see the photo of Mt. Fuji is a conical mountain, in fact, the bottom of the mountain diameter of 40 to 50 kilometers, covering an area of about 1300 square kilometers, and its underside is covered with a number of ancient volcanoes, the formation of many VEl-6-7 scale eruptions in history, is completely no less than the eruption of the Tonga submarine volcano, it can be said to be larger.
The approximate scale of the 17 recorded eruptions of Mt. Fuji has not been found, but the "Honaga Eruption" of 1707 more than 300 years ago is well documented in Japanese history, and on November 23 of that year, Mt. Fuji suddenly erupted in what modern geologists believe to be VEI-5, and about 700 million cubic meters of volcanic ash were sprinkled in Edo City (now Tokyo City, about 80 kilometers from Mt. Fuji) at that time, and it was sprinkled continuously for several weeks. Its volcanic ash sediment covers almost half of Honshu Island, and the thickness of volcanic ash in the Edo area can reach an average of 30 centimeters, and if there is another eruption of the same scale on Mt. Fuji today, the city of Tokyo will become an "uninhabitable city" in a few weeks, forcefully destroying Japan's existing economic and social state.
However, Mt. Fuji has been accumulating strength for 300 years, and if it erupts, it is more likely to be than the "Baoyong Eruption" and the current volcanic eruption of Tonga.
Resources:
"Global Network" January 18, 2022 article "Korean media: Japan's Mt. Fuji spit fire mouth increased nearly 6 times When it is not surprising when to erupt"
"Chutian Metropolis Daily Jimu News" December 3, 2021 article "Japan's serial earthquake cited "Mt. Fuji eruption" speculation, Japanese netizens: Should I store bath water? 》