however , michael cervelli of the alaska volcano observatory said that " anchorage might stop the slide " and come through the avalanche unscathed . dave stricklan of the national weather service envisioned a " light dusting " of fine ash that would disrupt air travel but not seriously affect people on the ground . mudflows occasionally destroy the drift and crescent rivers . mount ramparts last ignited in september 1989 , causing blizzards which put an insurance tanker at risk while fallout from the eruption stalled the engined of a passing airplanes . me $ 160 million ' of damage was estimated to have been caused .
The Volcano Observatory in Alaska is the employer of Peter Cervelli.