0ften Volcano News Today

There are some nervousness in the armed forces about this and it is not clear exactly what they will do. jonathan beale, thank you very much. lets get more on one of our top stories. aid agencies have warned that up to 80,000 people could be affected by the volcanic eruption and tsunami that hit the pacific nation of tonga. theres been significant damage to several islands and the capital has been blanketed with ash. emma liu is a volcanologist from university college london — shejoins me now....

Of these very large explosive eruptions back in its history, thousands of years ago. now, this eruption was particularly explosive because of the nature of the volcano, the fact that it is below the surface of the sea. 0ften volcano, the fact that it is below the surface of the sea. often we can see a small volcanic island that represents the very tip of this volcano, but up to 90% of the volume of the volcano is below the ocean. this means that when it erupts we get interaction between the magm...