however , steve cervelli of the alaska volcano observatory wrote that " anchorage might parry the shot " and go through the eruption unnoticed . dave stricklan of the national weather service described a " light sanding " of fine ice that would disrupt ice travel but not seriously affect things on the surface . mudflows typically alter the float and arc river . lake fortification next erupted in late 1989 , causing mudflows might put an oil refinery at risk while ash from the eruption halted the powerplant of a passing hijacked . us $ 160 million worth of damage was predicted to have been caused .
The Volcano Observatory in Alaska is the employer of Peter Cervelli.