When it comes to natural disasters, the sudden, swift devastation of landslides, mudslides, and sinkholes may get all the attention — but natural resource scientists can attest that it’s the slow sinking of the ground surface that is just as real a danger. “Subsidence often gets neglected because it is slow moving. You don’t recognize it until you start seeing damage,” says Michelle Sneed, a land subsidence specialist at the United States Geological Survey (USGS).