California Code, Government Code - GOV § 8642

Whenever a state of war emergency a state of emergency or a local emergency exists the governing body of the political subdivision shall meet as soon as possible.  The place of meeting need not be within the political subdivision.  The meeting may be called by the chief executive of the political subdivision or by a majority of the members of the governing body.  Should there be only one member of the governing body, he may call and hold said meeting and perform acts necessary to reconstitute the governing body.