1994 Northridge Earthquake - Valley Fever Outbreak

Valley Fever Outbreak

An unusual effect of the Northridge earthquake was an outbreak of coccidioidomycosis (Valley fever), a respiratory disease caused by inhaling airborne spores. The number of cases (203) in Ventura County was roughly 10 times the normal rate in the eight weeks following the earthquake and three people died. It is thought that the spores were carried in large clouds of dust created by seismically triggered landslides. Most of the cases occurred immediately downwind of the landslides.