Geology

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...

mining

Mining bodies refer to naturally occurring concentrations of minerals or valuable geological materials that are extracted for economic use. These can include ore deposits, coal...

geology

The Finger, Tennessee sinkhole formed when underground rock layers dissolved, causing surface collapse. Heavy rains often accelerate such karst processes, leading to sudden grou...

environment

Big Sur cliff refers to the dramatic coastal bluffs and sea cliffs along California’s Highway 1, where steep slopes meet the Pacific. These cliffs expose layers of sedimentary...

geology

Aken Cliff is a geological feature situated in a landscape shaped by river processes and sedimentary bedrock. This area is commonly associated with the broader valley systems of...

geology

In Italy, sinkholes form mainly where soluble rock such as limestone, dolomite, or evaporites lie beneath soils and urban areas. When slightly acidic water gradually dissolves t...

geohazards

A sinkhole is a depression or hole in the ground caused by the collapse of subsurface materials. In Nebraska, sinkholes are rare compared to regions underlain by thick limestone...

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...