Sinkholes

Safety

A person dies in a sinkhole when a subsurface void suddenly collapses underfoot, vehicle, or structure, leading to trauma, asphyxia, or burial. These events are rare but highly...

geohazards

Sinkhole deaths are rare compared with other geologic hazards, but they draw public attention because of sudden collapse, property damage, and dramatic rescue scenarios. This ev...

transportation

Sinkholes near bus routes in Pittsburgh are a persistent geologic concern shaped by the region’s karst limestone bedrock, soil conditions, and aging infrastructure. This overv...

geology

Sinkholes caught on camera reveal how quickly stable ground can fail and why footage matters for engineering, emergency response, and public safety. This evergreen explainer exa...