80K views · 508 reactions | After a massive underwater volcanic eruption near Tonga on January 15 triggered a tsunami, the staff of Chinese enterprises in the South Pacific island nation took emergency measures and evacuated to higher ground. But, before departure, an employee of China Civil Engineering Construction Corp (CCECC) South Pacific filmed a short video documenting the final moments he spent at his workplace, where he vowed to return one day. #TongaVolcano | CGTN | Facebook

The SWOT satellite captured the tsunami triggered by Russia’s Kamchatka earthquake on July 30. Disturbances like an earthquake or underwater landslide trigger a tsunami when the event is large enough to displace the entire column of seawater from the ocean floor to the surface. This results in waves that ripple out from the disturbance, much like how dropping a pebble into a pond generates a series of waves. Data from SWOT provided a multidimensional look at the leading edge of the tsunami wave