A tsunami has hit Tonga's largest island, Tongatapu, after an underwater volcano in the South Pacific erupted. | CNN

Ben describes how a major geological shift could trigger massive tidal movements… what he refers to as an “initial inertial tsunami,” followed by a reversal known as the “slosh back.” He explains that such an event could create hours-long surges, with water levels rising and receding dramatically as the planet stabilizes. While the scenario remains theoretical, he notes that the combination of geological, climatic, and radiological factors could make even smaller shifts deeply consequential. Cat