Riverside is in Riverside County, I-15 is a good reference. The 5/405 are the highways near where the tank is located.
My buddy in Irvine SE of the tank hasn’t been told to evac yet.
Ok I looked at the map
I-15 goes from the mountains north of San Bernardino to Corona, then bends southeast from Corona to Temecula.
Corona is the town just west of Riverside.
I-5 and I-405 come together in Irvine, which is far to the southwest of Corona.
I went through Riverside via 60 and 91, different path.