The Eaton and Palisades fires ignited nearly four weeks ago during a historic wind event that has seen the two fires kill at least 28 people, burn nearly 37,500 acres and destroy thousands of homes and businesses.

The California Department of Forestry and Fire Protection (CalFire) says that more than 12,300 structures have been destroyed—though individual measures for Palisades and Eaton are less than this. Investigators are still working to measure the number of lost and damaged buildings.