Key insights

• 🚨 Devastating 9.0 magnitude earthquake in northern Japan on March 11, 2011, Tsunami warnings issued in coastal cities, Residents sought higher ground for safety
• 🌊 Kesennuma people trapped on high-rise rooftop as tsunami strikes, Tsunami waves destroy buildings and create 'tsunami soup' filled with debris and seawater, Video captures water rushing over 18-foot seawall in Kesennuma city
• 💔 Largest earthquake in Japan, Significant loss of life, Collision of tectonic plates under the sea
• 🌊 Waves in deep water travel up to 500 miles an hour but have low height, Friction with the ocean floor in shallow water slows down the waves but raises their height
• ⚓ Japan Coast Guard ship confronting a tsunami wave in shallow water on March 11, Rare aerial footage of a tsunami wave approaching Japan's shoreline, Tsunami waves reaching as far as 3 miles inland, Japan's extensive seismological research and more than 1,200 high-precision GPS stations
• 📊 Data visualization of March 11 quake, Displacement waves moving at 5 miles per second, Ripples of tsunami waves moving upstream in Naka river, Enormous visual evidence for future study of earthquakes and tsunamis, Potential for better understanding and prevention of future loss of life

Q&A

• What role does new technology play in studying earthquake and tsunami waves?

  New technology provides visual evidence for studying earthquake and tsunami waves, aiding in future prevention of loss of life. It includes data visualization of the March 11 quake, displacement waves, and ripples of tsunami waves, offering enormous potential for better understanding and prevention of future loss of life.

• How far inland did the tsunami wave reach in Japan?

  The tsunami wave reached as far as 3 miles inland, showcasing the country's seismological research and extensive high-precision GPS network.

• What is the significance of waves in deep water versus shallow water?

  In deep water, waves travel fast but have low height. When waves encounter shallow water, friction with the ocean floor slows them down but increases their height.

• How did the tsunami waves affect Kesennuma city?

  The tsunami waves inundated Kesennuma city, destroying buildings and creating a 'tsunami soup' filled with debris and seawater. People were trapped on high-rise rooftops as the tsunami struck.

• What caused the devastating 9.0 magnitude earthquake in northern Japan on March 11, 2011?

  The earthquake was caused by the collision of tectonic plates under the sea, making it the largest earthquake known in Japan.

• 00:01 🌊 A devastating 9.0 magnitude earthquake hit northern Japan on March 11, 2011, causing tsunami warnings and prompting coastal residents to seek higher ground for safety.
• 00:34 Massive tsunami waves inundate Kesennuma city, destroying buildings and creating a 'tsunami soup' filled with debris and seawater.
• 01:05 The March 11 disaster in Japan was caused by the largest earthquake known in the country, resulting in significant loss of life. It was triggered by the collision of tectonic plates under the sea.
• 01:32 Waves in deep water travel fast but have low height. Friction in shallow water slows down the waves but increases their height.
• 02:02 Japan faces a tsunami wave, reaching as far as 3 miles inland, showcasing the country's seismological research and extensive high-precision GPS network.
• 02:44 New technology provides visual evidence for studying earthquake and tsunami waves, aiding in future prevention of loss of life.