Attendees offered a prayer to 43 victims who died in 1991, and to another person who died in the pyroclastic flows that occurred on June 23, 1993. A pyroclastic flow is a deadly, fast-moving mix ...

Michael Joseph Blassie; and victims of 9/11 ... it is essential to evacuate all people possibly in the way of pyroclastic flows, it is also essential to fit houses as shelters able to resist ...