By: Vivienne Wellet  An underwater volcano erupted offshore of Ohonua, which is around Australia. An underwater volcano forms when two tectonic plates collide with each other but one goes underneath the other one and after molten lava is produced in the second layer of Earth’s interior. According to officials, in Alaska, they could hear the sound of the explosion once it erupted. Many Airports, beaches, … Continue reading Underwater Volcano Sets Off Tsunami