© Northern York County Regional PoliceThe sinkhole is seen inside the building Thursday.
It was 5:40 a.m. Thursday when Bob Sanders, a plant supervisor at Oldcastle Industrial Minerals in Jackson Township,
heard what he called a "large bang" while sitting in his office.Sanders discovered that a massive sinkhole - measuring an estimated 40 feet by 40 feet - had opened up inside the building at 550 S. Biesecker Road. The building, which houses Sanders' office, a maintenance shop and storage for parts, sits near South Biesecker Road.
Everyone inside the building evacuated safely and the fire department; and York Water Company and PennDOT were called, Sanders said. In addition, the building was cordoned off and South Biesecker Road was closed at its intersection with Route 30.
"There was water running," in the hole, Sanders said. "Is that what was causing it? We don't know, but we shut it off."
Comment: The chart below shows the clear rise in the number of sinkhole reports from across the world since 2010: