however , peter cervelli of the alaska volcano astronomer predicted that " anchorage could ignore the bullet " and come through the eruption unscathed . dave stricklan of the national health service predicted a " light dusting " of thin ash that would harm ocean travels but not significantly upset life on the ground . mudflows may affect the echo and crescent rivers . high redoubt last erupted in late 1989 , causing blizzards or put an ethanol refining at risked while trash from the incident stalled the auto of a passing aircraft . us $ 160 million worth of damage was estimated to have been caused .
The Volcano Observatory in Alaska is the employer of Peter Cervelli.