Hospitals and medical centers in Gardnerville: Major Disasters (Presidential) Declared: 4 Emergencies Declared: 3 Causes of natural disasters: Floods: 6, Fires: 5, Storms: 4, Mudslides: 2, Snows: 2, Winter Storms: 2, Hurricane: 1, Other: 1 (Note: some incidents may be assigned to more than one category). Natural disasters: The number of natural disasters in Douglas County (15) is near the US average (15). It is 7437% greater than the overall U.S. Earthquake activity: Gardnerville-area historical earthquake activity is significantly above Nevada state average.