There are many types of natural, technological, and man-made threats and hazards that could affect Maricopa County.The Maricopa County Department of Emergency Management plans for, prepares for, mitigates, responds to, and aids in recovery from these events. Knowing what risks you may face may allow you to prepare for and act in response to these threats and hazards. Visit maricopa.gov/preparedness Opens a New Window. for more information on how to prepare for large-scale emergencies.