San Bernardino County’s newsletter urged residents Thursday, Oct. 9, to prepare for the Great ShakeOut earthquake drill scheduled for Oct. 16 and said the newsletter explains how to participate.

The newsletter listed the Oct. 16 drill by name and directed readers to a link for participation instructions; it did not provide additional details in the text excerpted in the newsletter announcement.

The announcement did not state whether the county will host organized events at specific locations or whether any offices or services would close for the drill.