Facts and Figures
type: 2950m composite volcano
1,800m of ash plume into sky - 27th 1980 march
8:30am- earthquake (huge blast)
Buldge growing on the side of Mt growing 1.5m a day
8:32am- may 18th the Landslide starts. earthquake causes buldge to move. top of cryptodome knocked off, exposes magma
Landslide to mudflows 8:33am- 174bn litres of snow melted to form mudflows
blast kills all within 27km to the north
Buldge 135m long/ 30m high
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