1.   But predicting if and when a volcano will blow is impossible.

2.   The researchers suggest that seismic waves from a far-off earthquake could increase the pressure within the chamber enough to make the volcano blow its top prematurely.

3.   Was a gardener in Pompeii admiring her curly parsley when the volcano blew?

4.   The volcano blew its top on Tuesday after rumbling for about a month.

5.   Goma had been split in two and one half of the town completely burned since the volcano blew on Thursday, he said.