BOSAI: Science that Can Save Your Life · SEASON 1
Long-period Ground Motion and A New Threat
Episode 4 · 2021-01-31

- Documentary
Episode overview
In the 2011 Great East Japan Earthquake, high-rise buildings in Tokyo's Shinjuku district, some 400 kilometers away from the epicenter, continued to sway significantly for 13 minutes. This is thought to have occurred when the high-rise buildings experienced resonance from the earthquake's "long-period seismic motion." Furthermore, in the 2016 Kumamoto earthquakes, a type of motion called a "long-period pulse" was recorded for the first time in Japan, presenting a new challenge for earthquake countermeasures. In addition to examining these types of earthquake motion, we'll also look at the effects of earthquakes on buildings and explore ways to save lives.
15 minutes
Season 1 episodes
1. Tsunami2020-05-01
2. Urban Flooding2020-09-05
3. Urban Windstorms2021-01-11
4. Long-period Ground Motion and A New Threat2021-01-31
5. Localized Torrential Rain2021-06-19
6. Debris Flows2021-07-10
7. Mt. Fuji's Threat to Tokyo2021-07-17
8. Heatstroke2021-08-28
9. Home Flooding2021-11-06
10. Tornadoes2021-11-13
11. Post-earthquake Fire2021-12-04
12. Avalanches2022-01-15
13. Lightning2022-02-05
14. Soil Liquefaction2022-02-12
15. PM2.52022-03-05
16. Tsunami Prediction2022-03-12
17. Human Stampede2022-05-21
18. Disaster Response Robots2022-06-04
19. Phreatic Eruptions2022-08-06
20. Linear Rainbands2022-08-13
21. Road Cave-ins2022-10-01
22. Solar Flares2022-10-22
23. Typhoon Forecasting2022-12-03
24. Storm Surges2022-12-24
25. Heavy Snow2023-02-11
26. Landslides2023-02-18
27. Quake-resistant Skyscrapers2023-03-11
28. Tsunami Observation2023-03-18
29. River Flooding2023-03-25
30. Fire Tornadoes2023-06-24
31. Lava Flows2023-07-29
32. Large-Scale Blackouts2023-08-26
33. Active Faults2023-09-30
34. Ensuring a Safe Journey in Japan2023-10-28
35. Droughts2023-11-18
36. Wildfires2023-12-23
37. Tokyo Metropolis2024-01-13
38. Osaka Metropolis2024-01-20
39. Emergency Food2024-03-02
40. Tsunami Evacuation2024-03-16
41. How to Survive an Earthquake2024-04-20
42. How to Survive a Flood2024-05-18
43. Drone Disaster Management2024-06-08
44. Send in the Robot Fire Brigade!2024-07-13
45. Safety Tips for Hiking in Japan2024-09-14
46. Digital Twin2024-09-28
47. Scientists on a Quest to Control Typhoons2024-11-02
48. Uncovering the Mysteries of Winter Lightning2024-12-28
49. Phase Free - Disaster Preparedness in Everyday Life2025-01-25
50. For Safe Travel Through Snowy Regions2025-02-22
51. Japan Self-Defense Forces Disaster Prevention2025-03-15
52. Sendai Metropolis2025-03-29
53. Metropolis Tokyo Shibuya2025-04-26
54. How Tokyo Skytree Deals with Disaster2025-06-21
55. Disaster Preparedness for Companion Animals2025-07-26
56. Kyoto2025-08-23
57. Preventing Marine Disasters2025-08-30
58. Large-Scale Logistics Facilities2025-11-22
59. Immersive Disaster Preparedness Training2025-12-20
60. Disaster Preparedness from Space2026-01-03
61. Nankai Trough Megaquake2026-01-24
62. Protecting Cultural Properties from Disaster2026-02-07
63. The Evolution of Volcanic Disaster Prediction Technology2026-02-14
64. Reducing the Danger from Bear Encounters2026-02-21
65. Extensive Underground Infrastructure2026-04-25
66. Disaster Response Robots2026-06-20
67. Upgrading Dams for a Changing Climate2026-07-18
68. Disaster Preparedness for Agricultural Infrastructure2026-10-31