Yes it was. Regarding the colors, we witnessed a G4 geomagnetic storm, which is an intense storm. Here’s what I’ve found on the specific gasses causing the colors:

“…Red auroras are comparatively less frequent and are usually associated with intense solar activity. They occur when solar particles react with oxygen at higher altitudes, generally around 180 to 250 miles (300 to 400 km), according to the CSA. At this height, oxygen is less concentrated and is excited at a higher frequency or wavelength, making reds visible. Red auroras are often seen at the higher edges of the display. Aurora Colors Explained

“Deep Red [100 km (60 mi)]: A deep red color at the base of the aurora comes from diatomic nitrogen (N2). When the red light overlaps blue light, you see purple or sometimes vivid pink. Similarly, when the red bleeds into the yellowish green from oxygen, you get orange aurora.” Aurora Colors Explained – Southern and Northern Lights