Cal. Penal Code § 148.4
(a) Any person who does any of the following is guilty of a misdemeanor and upon conviction is punishable by imprisonment in a county jail, not exceeding one year, or by a fine, not exceeding one thousand dollars ($1,000), or by both that fine and imprisonment:
(b) Any person who willfully and maliciously sends, gives, transmits, or sounds any false alarm of fire, by means of any fire alarm system or signal, or by any other means or methods, is guilty of a felony and upon conviction is punishable by imprisonment pursuant to subdivision (h) of Section 1170 or by a fine of not less than five hundred dollars ($500) nor more than ten thousand dollars ($10,000), or by both that fine and imprisonment, if any person sustains as a result thereof, any of the following: