Volcanoes can generate devastating waves

Explosions. Noxious gases. Lava fountains and flows. Avalanches of superheated pyroclastics. Although volcanic eruptions can cause all these frightening phenomena, it is often the power of the sea that causes many volcano-related deaths. this destruction comes from tsunamis (huge volcano-generated waves) Roughly one-fourth of the deaths occurring during volcanic eruptions have been the result of tsunamis. Moreover a tsunami can transmit the volcano's energy to areas well outside the reach of the eruption itself.