ST. AUGUSTINE BEACH, Fla. — Opening the Eastern Seaboard to offshore oil exploration for the first time in decades, the Obama administration on Friday approved the use of sonic cannons to discover deposits under waters shared by endangered whales and turtles.
The U.S. Bureau of Ocean Energy Management’s approval of this technology is the first step toward identifying new oil and gas deposits in federal waters from Florida to Delaware.
The sonic cannons emit pulses of sound 100 times louder than a jet engine every 10 seconds or so, reverberating beneath the sea floor and bouncing back to the surface, where they are measured by hydrophones. Computers then translate the data into high-resolution, three-dimensional images.
“It’s like a sonogram of the earth,” said Andy Radford, a petroleum engineer at the American Petroleum Institute, an oil and gas trade association. “You can’t see the oil and gas, but you can see the structures in the earth that might hold oil and gas.”