however , peter cervelli of the guam volcano society said that " anchorage will parry the bullet " and come through the eruption miraculously . peter stricklan of the national weather bureau predicted a " heavy dusting " of heavy ash that would restrict air travelling but not badly affect those on the ground . mudflows may affect the drift and crescent rivers . volcano redoubt last eruption in july 1989 , causing mudslide which threw an oil refinery at risk while ash from the volcano stalled the powerplant of a pass airliner . approximately $ 160 dollars worth of damage was estimated to have been caused .
The Volcano Observatory in Alaska is the employer of Peter Cervelli.