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Strong shaking caused by earthquakes. In particular, shaking with a period of 1 to 2 seconds is called a killer pulse, which is prone to destroying low-rise buildings such as houses. It has destroyed many houses and taken lives in the Great Hanshin-Awaji Earthquake, the Niigata Chuetsu Offshore Earthquake, and the Kumamoto Earthquake. Recently, buildings collapsed one after another in Turkey and Syria after a direct-hit earthquake that killed more than 50,000 people. Earthquake-proofing buildings is the number one priority in earthquake countermeasures. However, there are also challenges... Nagakute City, Aichi Prefecture. A wooden house is in the middle of earthquake-proofing construction. Walls are removed to make it into one large room, and braces are installed in nine places. (Kio Architecture, Tomohiro Kio) "The building is old, so it's hard to say for sure, but if an earthquake like the one in Tohoku hit, it would collapse completely, so we are doing earthquake-proofing construction to make the house as earthquake-resistant as possible." This house is 44 years old. Owner Tomoaki Yamada. When their second child was born, they planned to renovate and reinforce their house against earthquakes, so they were shocked when they checked the house's earthquake resistance. (Yamada Tomoaki) "I think the numbers were under 0.1... less than one-tenth of the standard." The building's earthquake resistance was an astonishing 0.12. If a structure that can withstand an earthquake of magnitude 6+ is considered 1.0, then this is only 12% of the strength. Subsidies are available for making homes that are over 42 years old earthquake-proof. However, in this house, only one room, the living/dining/kitchen area, needs to be reinforced against earthquakes. There is a reason for this. From CBC TV's "Chanto!" broadcast on March 10, 2023