Reports of a “loud boom or shaking sound” in parts of southern New Jersey on Tuesday afternoon were neither seismic activity nor of “meteorological origin,” according to the National Weather Service of Philadelphia-Mount Holly.
As of 3:15 p.m., the United States Geological Survey earthquake map did not show any signs of seismic activity.
The rumbling and sound occurred around 1:24 p.m., according to unconfirmed reports submitted to the website Volcano Discovery.
A USA Today Network journalist in Longport, Atlantic County reported feeling two waves of subtle shaking around 1 p.m. Each time, his front door rattled for five to 10 seconds as if were being buffeted by high winds and the house rumbled briefly. The two waves were spaced out by several minutes.
The disturbance could be felt as far north as Monmouth and Ocean counties and as far south as Cape May, according to social media reports.
