Three minutes to talk about popular science
At a depth of about 7,500 meters in the "Japan Trench", there is a "fault cliff". Some people say,Maybe we can drag the whole of Japan into the Pacific Ocean!Is this true?ThatDoes it have anything to do with **?
The"Fault cliffs".It is up to 26 meters high, which is equivalent to the height of seven or eight floors of an ordinary residential buildingSuch a huge submarine cliff,The reason for its formation can be traced back to 13 years ago, when a big ** occurred in Japan.
At that time, the international public waters in the western Pacific Ocean occurred at 9 on the Richter scaleThe magnitude of the 0-magnitude earthquake source reached hundreds of kilometers, and it was historically known as the Great ** of East Japan.
The Fukushima Nuclear Power Plant, Japan's largest nuclear power plant at the time, was damaged and leaked precisely because of this **。It also poses an existential threat to all mankind, but of course that's a story for another time.
Although the epicenter is located in the open sea, the huge amount of energy generated by ** is transferred to the seawater and causes a tsunamicaused a tsunami of 23 meters. Perhaps because of the emergency situation on the day of the disaster, the measurement was not very accurateThe declared tsunami was only 10 meters.
* The power of the tremor and the power of the huge tsunamiAs a result, 12 cities in Japan have been damaged to varying degreesEven some high-rise buildings in Beijing, Tianjin, and other provinces and cities in China could feel the tremors.
In total, 19,000 people were killed and 2,500 were missingAmong them were nine firefighters who lost their lives as a result of the disaster relief. To this day,Another 52,000 people had to be displaced due to the impact of the Great East Japan MissionI can't go home to a home.
As a famous earthquake-prone country, how to survive in the best environment is a compulsory course for every Japanese nationalBut behind the discovery of the submarine fault cliffs portends an even greater danger.
The main reason for the formation of submarine fault cliffs observed in recent days is plate movementAccording to relevant Japanese experts, the fault cliff is due to the seabed of the Japan Trench area during the Great East Japan LargeIt was moved 80-120 meters to the east horizontally in an oblique section.
Because it is an oblique elevation,So the front end of the seabed has increased horizontally and vertically by about 60 metersDuring the move, part of the front end collapsedThe result was a submarine fault cliff with a height of about 26 meters.
Found around the cliff and found many small clods of earthIt can also be confirmed that the formation of the fault cliff is caused by the collapse of the front end during the movement.
Similar to the formation of submarine fault cliffs, there are three ocean trenches in the waters adjacent to JapanThe Japan Trench, which is only 200 kilometers from Tokyo, the Ogasawara Trench, which originates in the southern part of the Japan Trench and connects to the Mariana Trench, and the Kuril Trench, which is about 2,900 kilometers long from the Bering Sea to the Philippine Trench. The average depth of these three trenches surrounding Japanese territory and the sea area is about 10,000 metersThey all form for the same reasons as submarine fault cliffs, which are caused by the subduction of seafloor plates into other plates at a very high speed.
Contrary to conventional wisdom, the earth we live on isThe plot is still in constant motion, but the changes caused by the movement are so small that we can't perceive them.
Previously, due to the limited technical equipment, it was not possible to carry out the survey immediately at the end of the **The results of this survey also indicate that Japan is still on the edge of plate activity.
East Japan Great** originates from the Japan Trench, and has the same nature as the Ogasawara Trench and the Kuril TrenchIt is also possible that a super earthquake and tsunami will not be inferior to the largest in East Japan.
These active crusts and deep ocean trenches,All of them hide the energy of destroying the world.
Let's start with the conclusionThe existence of submarine fault cliffs may sink Japan, and it may affect Japan, but it is very, very, very small. There is no way for humans to predict all disasters, especially in the face of nature.
East Japan is the most serious natural disaster in Japan since the end of World War IIIt has caused huge losses to Japan and its people, but the impact of such a serious disaster on Japan's landIt's just that the Japanese island of Honshu has moved 24 meters.
If Japan were to be submerged in the sea, it would be necessary to move the Japanese land more than 2,000 meters eastward. As a joke, the sinking of Japan is a math problemIf Japan wants to sink, it will have to come a thousand times at the level of East JapanAt that time, the local residents had already migrated.
Jokes are jokesThere is no upper limit to the power of natureIf a super ** strikes, the Japanese plate moves rapidlyThe impact on my country and on the whole of Asia is immeasurable.
But when that day really comes, humans may be like dinosaursIt will only become the archaeological data of the new civilization in the future.
In 2006, Japan filmed a film called "Japan Sinks".It tells the story of how Japan will sink to the bottom of the sea in more than 300 days due to the movement of the earth's crust.
Although such a large area of crustal activity is almost impossible to occurBut the creation of new submarine cliffs also proves that the speculation is one in a billion.
However, the discovery of submarine fault cliffs is not only bad news, the discovery of submarine fault cliffs,It provides a very large number of data samples for major disasters in the futureLet human beings have a better understanding of **, tsunamis, and plate movementIn the future, we can also make more accurate pre-disaster evacuation, disaster rescue and post-disaster reconstruction for similar disasters.
The submarine fault cliffs discovered by the international research team of Niigata University using manned submersibles are of great significance, but they are not intended to create panic, although they represent dangerIt also represents the scientific spirit of continuous progress and exploration of human beings.
Human beings may not be the eternal protagonists of the stage drama of nature, but they will definitely be extraordinary creatures born of natureLet's stay in awe and live every ordinary and extraordinary day.