If an employer willfully violates any provision of this title, an order passed under this title, or a regulation adopted to carry out this title and the violation caused death to an employee, on conviction the employer is subject to: for a first offense, a fine not exceeding $10,000 or imprisonment not exceeding 6 months or both; or for a subsequent offense, a fine not exceeding $20,000 or imprisonment not exceeding 1 year or both.