Season
Season 1 Episode
- Season 1 Tsunami
- Season 1 Urban Flooding
- Season 1 Urban Windstorms
- Season 1 Long-period Ground Motion and A New Threat
- Season 1 Localized Torrential Rain
- Season 1 Debris Flows
- Season 1 Mt. Fuji's Threat to Tokyo
- Season 1 Heatstroke
- Season 1 Home Flooding
- Season 1 Tornadoes
- Season 1 Post-earthquake Fire
- Season 1 Avalanches
- Season 1 Lightning
- Season 1 Soil Liquefaction
- Season 1 PM2.5
- Season 1 Tsunami Prediction
- Season 1 Human Stampede
- Season 1 Disaster Response Robots
- Season 1 Phreatic Eruptions
- Season 1 Linear Rainbands
- Season 1 Road Cave-ins
- Season 1 Solar Flares
- Season 1 Typhoon Forecasting
- Season 1 Storm Surges
- Season 1 Heavy Snow
- Season 1 Landslides
- Season 1 Quake-resistant Skyscrapers
- Season 1 Tsunami Observation
- Season 1 River Flooding
- Season 1 Fire Tornadoes
- Season 1 Lava Flows
- Season 1 Large-Scale Blackouts
- Season 1 Active Faults
- Season 1 Ensuring a Safe Journey in Japan
- Season 1 Droughts
- Season 1 Wildfires
- Season 1 Tokyo Metropolis
- Season 1 Osaka Metropolis
- Season 1 Emergency Food
- Season 1 Tsunami Evacuation
- Season 1 How to Survive an Earthquake
- Season 1 How to Survive a Flood
- Season 1 Drone Disaster Management
- Season 1 Send in the Robot Fire Brigade!
- Season 1 Safety Tips for Hiking in Japan
- Season 1 Digital Twin
- Season 1 Scientists on a Quest to Control Typhoons
- Season 1 Uncovering the Mysteries of Winter Lightning
- Season 1 Phase Free - Disaster Preparedness in Everyday Life
- Season 1 For Safe Travel Through Snowy Regions
- Season 1 Japan Self-Defense Forces Disaster Prevention
- Season 1 Sendai Metropolis
- Season 1 Metropolis Tokyo Shibuya
- Season 1 How Tokyo Skytree Deals with Disaster
- Season 1 Disaster Preparedness for Companion Animals
- Season 1 Kyoto
- Season 1 Preventing Marine Disasters
BOSAI: Science that Can Save Your Life - Season 1 Episode 4 Long-period Ground Motion and A New Threat
0.00 15 minutes 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.
