articleThe Brief A reported 2.3 magnitude earthquake near Lilburn was reclassified by the U.S. Geological Survey as a manmade quarry blast. The tremor occurred Wednesday afternoon near Meadowcreek High School and was only felt locally by people in the immediate area. Wednesday’s reported minor earthquake centered near Lilburn appears to have been more manmade than a natural rumbling. What we know:The U.S. Geological Survey reported a magnitude 2.3 earthquake shook metro Atlanta just after noon on Wednesday. It is unclear if any damage was caused to Meadowcreek High School or nearby properties.