1 - Adding sugar to a drink taken straight from a microwave can trigger an eruption of boiling liquid.

2 - Our understanding of submarine volcanic eruptions has improved substantially in the past decade owing to the recent ability to remotely detect such events and to respond rapidly with brief surveys and sampling at the eruption site.

3 - Is it possible for scientists to predict when a volcano will erupt so they can call for the evacuation of the area around it?

4 - Volcanologists announce when an eruption is imminent so that people can be evacuated from the threatened area.

5 - Volcanoes produce a variety of signals; the trick is in understanding which indicate imminent eruption and which do not.