Colima volcano in Mexico erupts to 20,000ft
http://www.ssd.noaa.gov/VAAC/ARCH16/COLI/2016A040410.html

Fuego volcano in Guatemala erupts to 20,000ft
http://www.ssd.noaa.gov/VAAC/ARCH16/FUEG/2016A040443.html

Sheveluch volcano on Kamchatka, Russia erupts to 20,000ft
http://ds.data.jma.go.jp/…/2016/20160103_30027000_0002_Text…

Karymsky volcano on Kamchatka, Russia erupts to 13,000ft
http://ds.data.jma.go.jp/…/2016/20160104_30013000_0003_Text…

Tengger Caldera volcano in Indonesia erupts to 12,000ft
http://www.bom.gov.au/products/IDD41305.shtml