PERSON@1 , Fire Mountains of the West , 1st edition , page NUMBER@1 For more than nine hours , a vigorous plume of ash erupted , eventually reaching NUMBER@2 to NUMBER@3 miles -LRB- NUMBER@4 to NUMBER@5 km -RRB- above sea level .

For more than nine hours , ash erupted from the volcano , rising into the air for NUMBER@2 to NUMBER@3 miles -LRB- NUMBER@4 to NUMBER@5 km -RRB- above sea level in the air .
