BOSAI: Science that Can Save Your Life
Season 1, Episode 4: Long-period Ground Motion and A New Threat
Select Source
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.
All Episodes - Season 1
Episode 1
Tsunami
Episode 2
Urban Flooding
Episode 3
Urban Windstorms
Episode 4
Long-period Ground Motion and A New Threat
Episode 5
Localized Torrential Rain
Episode 6
Debris Flows
Episode 7
Mt. Fuji's Threat to Tokyo
Episode 8
Heatstroke
Episode 9
Home Flooding
Episode 10
Tornadoes
Episode 11
Post-earthquake Fire
Episode 12
Avalanches
Episode 13
Lightning
Episode 14
Soil Liquefaction
Episode 15
PM2.5
Episode 16
Tsunami Prediction
Episode 17
Human Stampede
Episode 18
Disaster Response Robots
Episode 19
Phreatic Eruptions
Episode 20
Linear Rainbands
Episode 21
Road Cave-ins
Episode 22
Solar Flares
Episode 23
Typhoon Forecasting
Episode 24
Storm Surges
Episode 25
Heavy Snow
Episode 26
Landslides
Episode 27
Quake-resistant Skyscrapers
Episode 28
Tsunami Observation
Episode 29
River Flooding
Episode 30
Fire Tornadoes
Episode 31
Lava Flows
Episode 32
Large-Scale Blackouts
Episode 33
Active Faults
Episode 34
Ensuring a Safe Journey in Japan
Episode 35
Droughts
Episode 36
Wildfires
Episode 37
Tokyo Metropolis
Episode 38
Osaka Metropolis
Episode 39
Emergency Food
Episode 40
Tsunami Evacuation
Episode 41
How to Survive an Earthquake
Episode 42
How to Survive a Flood
Episode 43
Drone Disaster Management
Episode 44
Send in the Robot Fire Brigade!
Episode 45
Safety Tips for Hiking in Japan
Episode 46
Digital Twin
Episode 47
Scientists on a Quest to Control Typhoons
Episode 48
Uncovering the Mysteries of Winter Lightning
Episode 49
Phase Free - Disaster Preparedness in Everyday Life
Episode 50
For Safe Travel Through Snowy Regions
Episode 51
Japan Self-Defense Forces Disaster Prevention
Episode 52
Sendai Metropolis
Episode 53
Metropolis Tokyo Shibuya
Episode 54
How Tokyo Skytree Deals with Disaster
Episode 55
Disaster Preparedness for Companion Animals
Episode 56
Kyoto
Episode 57
Preventing Marine Disasters
Episode 58
Large-Scale Logistics Facilities