The subsidence was topped with clay and rocks, and the flow in Toby Creek has increased. The DEP anticipates settling the materials and will continue to monitor them in the coming days.

Officials also say crews added 80 more cubic yards of concrete into the subsidence which is topped with more clay and rocks. Another resident near the area who didn’t want to appear on camera ...

Land subsidence is a geological disaster that occurs when natural factors or human engineering activities cause the consolidation and compression of loose underground rock formations, resulting in ...

Increased use of groundwater caused the ground to sink (subsidence) around Konya ... it wears away these rocks and leads to the formation of underground caves and other openings.

However, a new study shows that in some areas of O’ahu, that subsidence rate can be as high as 25 millimeters per year, roughly 40 times faster than expected. Researchers believe this is largely ...