An earthquake drill will create increased helicopter and military vehicle traffic on and near Sanderson Field in Mason County on June 19-24.
Mason County agencies and organizations will support the National Guard for the exercise named Evergreen Tremor.
The fictional exercise simulates a large earthquake. Participants will simulate a response as realistically as they can.
Anyone with concerns or questions about the exercise is asked to contact the Division of Emergency Management at 360-427-7535 or e-mail MCDEM@co.mason.wa.us.