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Last June, a frightening phenomenon occurred on the Gordon Moore municipal field in Alton (in the United States).
Luckily, no one was on site at the time of the collapse. “Right in the middle of the field, a 15-meter sinkhole formed in just a few seconds,” reports L’Indépendant. It was a surveillance camera that immortalized the scene.
Explanations
“Like a bomb that exploded,” is what the director of the city’s parks and recreation department, Michael Haynes, told NBC. In fact, the 30-meter-wide hole was caused by the collapse of an underground mine, populated by miners who were digging 45 meters below the park.
An investigation has been opened to clarify the circumstances of the incident.
