Numbers 16:32

and the earth opened her mouth, and swallowed them up and their houses, the families of the leaders, and all the men that appertained unto Korah, that is, his servants, and all their goods. The catastrophe included Korah, although he was probably not in his tent at the time, but somewhere between the Tabernacle and the section of the camp south of the Tabernacle, and next to the camp of the Kohathites, where the tribe of Reuben was encamped.