HackerTube / Video
2011-3-11 (Home Video) Japan Earthquake Live, With Early Warning. Complete Raw
Omar Diaz
Home video of the 11 March 2011 Japan earthquake, filmed as an early warning system detected the P wave and gave seconds of notice before the shaking began. The raw footage shows the warning in action.
HN cites it as a concrete real-world example of how much warning earthquake early-warning systems can provide.
3 Hacker News mentions · 2014–2018