Info about Redoubt’s last explosive eruption in 1989:
“The 1989-90 eruption of Redoubt seriously affected the populace, commerce, and oil production throughout the Cook Inlet region and air traffic as far away as Texas. Total estimated economic costs are $160 million (Tuck and others, 1992), making the eruption the of Redoubt the second most costly in U.S. history.”
http://www.avo.alaska.edu/volcanoes/volcact.php?volcname=Redoubt&eruptionid=442&page=basics
“The 1989-90 eruption of Redoubt seriously affected the populace, commerce, and oil production throughout the Cook Inlet region and air traffic as far away as Texas. Total estimated economic costs are $160 million (Tuck and others, 1992), making the eruption the of Redoubt the second most costly in U.S. history.”
Roughly the same amount as was spent on the Obamanation coronation...