
© USGSSonic booms were reported over southern New Jersey and along the East Coast to Long Island, New York, on Jan. 28, 2016.
At least 10 sonic booms have been reported this afternoon (Jan. 28) from southern New Jersey along the East Coast to Long Island, New York, say scientists with the U.S. Geological Survey (USGS).The first sonic boom was recorded at 1:24 p.m. EST (18:24:05 UTC), about 2 miles (3 kilometers) north-northeast of Hammonton, New Jersey, and 37 miles (60 km) south of Trenton, New Jersey. In the following hour and a half, seismometers picked up at least nine other sonic booms along the Eastern Seaboard all the way to Long Island, according to the USGS.
A spokesperson for the USGS said agency scientists there have no other information except that these were sonic booms and not earthquakes that were detected today.A sonic boom occurs when an object (or an explosion) travels faster than
the speed of sound (761.2 mph, or 1,225 km/h, at sea-level), sending out a shockwave that also travels faster than sound, according to John Bellini, a geophysicist with the USGS National Earthquake Information Center in Golden, Colorado.
The cause of today's sonic booms remains mysterious. Bellini noted, however, that if an explosion had caused these booms, someone likely would have seen it.
Comment: For more on some of the strange sounds that have been occurring recently see SOTT Exclusive: Strange sounds are back: 'Sky trumpets' heard in the Netherlands, the UK and Morocco