A mass tort is a civil action involving numerous plaintiffs against one or a few corporate defendants. The tort may involve, for example, personal injuries suffered by numerous plaintiffs as a result of a defective product, or a mass disaster in which there were many injured persons, such as an airplane crash, or exposure of a large group of people to toxic chemicals or pharmaceuticals.
Umpqua is an unincorporated community in Douglas County, Oregon, United States. The population was 112 at the 2000 census. The word "Umpqua" was first used by the local Native Americans to refer to the locality around the Umpqua River and came to be applied to the river as well.