(1부) 동해 사라지고 있습니다. 일본이 한반도로 다가옵니다 (부산대학교 지질환경과학과 김기범 교수)
언더스탠딩 : 세상의 모든 지식
560,656 views
💡Summary
Immediately after a magnitude 7.6 earthquake struck near Hokkaido, Japan, in April of this year, the Japanese government took an unusual measure. By issuing a "Secondary Earthquake Advisory," they officially warned that this earthquake could be a foreshock rather than the main shock, and that a larger earthquake could follow. Professor Kim Ki-beom of the Department of Geological Environmental Sciences at Pusan National University explains that there is a scientific basis for this warning. This is because past cases actually show instances where a magnitude 7 earthquake preceded an earthquake of magnitude 9 or higher.
The Kuril Trench region has not experienced a major earthquake for the past 400 years. As the Pacific Plate subducts beneath the Japanese archipelago at a rate of approximately 8 centimeters per year, the crust has been accumulating energy while interlocked. According to findings from lake sediment core analysis by researchers at Tohoku University and Hokkaido University, crustal slip reached 25 meters during earthquakes of magnitude 8.8 to 9.3 that occurred in the region during the 17th century. With accumulated displacement already reaching 20 to 30 meters, researchers conclude that conditions are in place for a magnitude 9 earthquake to occur.
The Japanese Cabinet Office publicly announced a worst-case scenario in which up to 199,000 tsunami deaths could occur in the region, and based on this, has been preparing evacuation plans and tsunami shelters. A system is also already in operation that calculates the time of tsunami arrival immediately after an earthquake using the Japan Trench Underwater Earthquake and Tsunami Network (S-net) to issue warnings. Experts emphasize that practical preparation for traveling to Japan involves checking the location and structure of accommodations in advance and identifying evacuation routes in advance in the event of a tsunami warning. 📌Key Topics
Scientific Basis for Follow-up Earthquake Advisories
400 Years of Accumulated Plate Stress and Magnitude 9 Prediction
Japan's Worst-Case Disaster Prevention Plan
The Role of the S-net Undersea Earthquake Monitoring Network
Earthquake Risks in the East Sea Region of the Korean Peninsula
[This is an AI-generated summary of the video]
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20 Comments
그래도 교수님 믿고 끝까지 봅니다.
(1부) 동해 사라지고 있습니다. 일본이 한반도로 다가옵니다 (부산대학교 지질환경과학과 김기범 교수)
언더스탠딩 : 세상의 모든 지식
560,656 views
💡Summary
Immediately after a magnitude 7.6 earthquake struck near Hokkaido, Japan, in April of this year, the Japanese government took an unusual measure. By issuing a "Secondary Earthquake Advisory," they officially warned that this earthquake could be a foreshock rather than the main shock, and that a larger earthquake could follow. Professor Kim Ki-beom of the Department of Geological Environmental Sciences at Pusan National University explains that there is a scientific basis for this warning. This is because past cases actually show instances where a magnitude 7 earthquake preceded an earthquake of magnitude 9 or higher.
The Kuril Trench region has not experienced a major earthquake for the past 400 years. As the Pacific Plate subducts beneath the Japanese archipelago at a rate of approximately 8 centimeters per year, the crust has been accumulating energy while interlocked. According to findings from lake sediment core analysis by researchers at Tohoku University and Hokkaido University, crustal slip reached 25 meters during earthquakes of magnitude 8.8 to 9.3 that occurred in the region during the 17th century. With accumulated displacement already reaching 20 to 30 meters, researchers conclude that conditions are in place for a magnitude 9 earthquake to occur.
The Japanese Cabinet Office publicly announced a worst-case scenario in which up to 199,000 tsunami deaths could occur in the region, and based on this, has been preparing evacuation plans and tsunami shelters. A system is also already in operation that calculates the time of tsunami arrival immediately after an earthquake using the Japan Trench Underwater Earthquake and Tsunami Network (S-net) to issue warnings. Experts emphasize that practical preparation for traveling to Japan involves checking the location and structure of accommodations in advance and identifying evacuation routes in advance in the event of a tsunami warning. 📌Key Topics
Scientific Basis for Follow-up Earthquake Advisories
400 Years of Accumulated Plate Stress and Magnitude 9 Prediction
Japan's Worst-Case Disaster Prevention Plan
The Role of the S-net Undersea Earthquake Monitoring Network
Earthquake Risks in the East Sea Region of the Korean Peninsula
[This is an AI-generated summary of the video]
👉Understanding Inquiries: understanding.officialmail@gmail.com
👉 Read "Understanding Text"
https://contents.premium.naver.com/ba...
👉 Join Understanding Membership
@understanding.
https://youtu.be/D16D63o8L8o