furthermore , richard cervelli of the alaska eruptions observatory noted that " anchorage perhaps miss the shot " and break through the eruption unscathed . dave stricklan of the national weather service predicted a " light dusting " of fine ash that wouldn disrupt air transport but not critically affect people on the ground . torrents may affecting the drift and crescent flows . mount fortresses last erupted in late 1989 , causing mudflows might put an oil refinery at risk while ashes from the eruption stalled the engine of a passing jetliners . another $ 160 million all of damage was estimated to have been cause .
The Volcano Observatory in Alaska is the employer of Peter Cervelli.