Never before seen videos of the 2011 Japanese Quake and Tsunami

I bet there are thousands of these...
Analysis of newly found 2011 quake videos leads to new theories about receding tsunami.

Fourteen years after the Great East Japan Earthquake, videos that had not been made public before show the horrors of receding tsunami and lead to new theories that experts had not thought of before. The new discovery is expected to help formulate countermeasures for future disasters such as the anticipated Nankai Trough megathrust earthquake.