Here’s a summary of the risks of large-scale earthquakes in Japan.

Here’s a summary of the risks of large-scale earthquakes in Japan.

■Nankai Sea Valley (Trope) Earthquake: The Nankai Sea Valley is divided into four regions: Hojnada, Nankai, Dojikai, and Tokai. The area where the 2024. 8. 7.1 magnitude earthquake hit is Hojnada (向灘). It can be said that it is Japan’s top three fuse along with the Sagami Sea Valley and the Japanese Sea, seen below.
The Nankai Sea Valley is the point where the Eurasian and Philippine versions are in contact, and the Nankai Sea Valley earthquake can occur every 100 to 150 years, including an 8.0 magnitude earthquake in 1946.
The Japanese government estimates that the probability of an earthquake in the Nankai Sea is 80% within 30 years. It is analyzed that if an 8-9 magnitude earthquake occurs, 230,000 people will be killed and missing, and 2.09 million buildings will be damaged. A tsunami of 30 meters is expected, and the damage is estimated to reach up to 3,178 trillion won (Japanese Civil Society).
With the announcement of the first-ever “Temporary Information on the Nankai Sea Earthquake,” Japanese Prime Minister Fumio has also decided to cancel his trip to Central Asia.

■ Capital earthquake: a magnitude 7 earthquake that repeatedly occurs historically in Minamikanto, including Tokyo, Chiba, Kanagawa and Ibaragi prefectures. In Sagami Bay off Tokyo, the Philippine Sea Plate is sunk below the North American Plate, and the Sagami Sea Plate Border is located.
Based on the Sagami Sea Valley, the earthquake of the magnitude 8.1-8.5 Kenroku earthquake occurred on December 31, 1703, and the magnitude 7.9-8.3 Kanto earthquake occurred on September 1, 1923.
Japan’s Earthquake Investigation Commission said the probability of a magnitude 7 earthquake occurring within 30 years due to the sedimentation of plates in the Sagami Sea is about 70 percent.
If a magnitude 7 earthquake hits Tokyo, the Japanese government expects about 95.3 trillion yen in damage and 23,000 deaths, while scholars expect 300 trillion yen in damage and 48,000 deaths.

■ It is analyzed that the earth’s crust on the Korean Peninsula has changed due to the 9.0 magnitude earthquake on March 11, 2011 and that geology has become easily triggered. Professor Hong Tae-kyung points out that the earthquake in Gyeongju on September 12, 2016 was also the aftermath of the Great East Japan Earthquake.
Despite the frequent and predictable large-scale earthquakes in Japan, the Japanese government’s push for a nuclear power plant promotion policy is a serious global threat, which is why I monitor the earthquake in Japan every day. And a massive earthquake in Japan could have a huge impact on Korea. It’s not anyone’s business.

■It is a ‘large-scale earthquake expected in Japan’ translated and made by the Hankook Ilbo based on the ‘Japan’s disaster countermeasures’ written by the Japanese government. The graphic is good, but I can’t see the writing of the earthquake directly under the capital city in the Hankook Ilbo article, so I corrected it to look good. And I share Nankai Sea Valley Earthquake because I like wooden wiki graphics.