- precursors = bulge and numerous small earthquakes
- earthquake and landslide triggered the eruption
Elements of the Eruption
- lateral blast
- tephra
a) ash fall
b) pyroclastic flow
- mud flows
lahars
- environmental risk for
those not in the immediate
vicinity of the volcano = MUD FLOWS
Direct Effects = property damage, loss of human life, etc.....=> from lahars
Indirect Effects = Climate Change
- Global climate change as a result of small volcanic events
- larger eruptions could be global catastrophes
- calderas