Which three choices are supporting details? Topic: i detectors Supporting Detail The old tsunami warning systems did not give people enough time to evacuate. tral Idea A tsunami is a series of powerful waves. Supporting Detail now have a 1 system that 2 world to a tsunami, eople safe. Buoys communicate with sensors on the ocean floor. A sensor can detect even the slightest change in sea level. Supporting Detail Tsunami waves can reach over 100 feet highl​