The loud explosion of Hunga Tonga Hunga Ha’aoai volcano on January 15, 2022, and the subsequent tsunami, had baffled scientists worldwide, because the models of Displacement or perturbation of sea water [Wikipedia-Tsunami], generating tsunami couldn’t explain this tsunami. However, photographs and videos of the 200 meters (650 feet) undersea volcano, shows the raising of mushroom shape, from surface of water to >30 kilometers (19 miles) high illustrated steam formation, we suggested it contain 90% steam; this suggested the bulk explosion was caused by the instant transformation of water into steam, resulted in amplification of steam by 1,700 times, thus: (https://youtu.be/_hhx6DVOOhM)
We suggested the explosion and part of the enormous steam diverted under the sea created the tsunami wave similar to our model in “The Tsunami Mechanism”
https://www.researchgate.net/publication/357677331_The_Tsunami_Mechanism