A. A “civil emergency” means any natural disaster or man-made calamity, including flood, conflagration, cyclone, tornado, earthquake, or explosion within the corporate limits of the City, resulting in the death or injury of persons or the destruction of property to such an extent that extraordinary measures must be taken to protect the public health, safety and welfare.

B. “Curfew” means a prohibition against any person or persons walking, running, loitering, standing, traveling, or motoring upon any alley, street, highway, public property or places open to the public, or vacant premises within the corporate limits of the City, excepting persons officially designated to duty with reference to riot, unlawful assembly or civil emergency.

C. “Incendiary object” means a gasoline or other incendiary type liquid or substance filled bottle or container with a fuse type wick inserted in the neck thereof (commonly used in World War II), or any other type of incendiary bomb or contrivance utilizing any bottle or container filled with any flammable liquid or chemical or combination thereof susceptible to spontaneous ignition.

D. A “riot” means the use of actual force or violence by three or more persons acting together without authority of law where the use of such force or violence would endanger or tend to endanger the safety of property or persons.

E. “Unlawful assembly” means any threat, actual or implied, to use force or violence when accompanied by immediate power to execute such force or violence by three or more persons acting together without authority of law and where the threat to use the same would endanger or tend to endanger the safety of property or persons. (Ord. 1244 § 2 (part), 1985: Ord. 506 § 1, 1969).