Seismic airguns are used to find oil and gas deep beneath the ocean floor. The airguns are so loud that they can disturb and injure marine life, and can be heard up to 2,500 miles away--further than the distance between Washington, D.C. and Las Vegas. They can also harm commercial fisheries and disrupt coastal economies. These blasts are repeated every ten seconds, 24 hours a day, for days to weeks at a time. Seismic airgun blasting could injure as many as 138,000 whales and dolphins and disturb millions more.  

Seismic airguns are towed behind ships and shoot loud blasts of compressed air through the water that travel miles into the seabed, which reflect back information about buried oil and gas deposits. These blasts harm marine mammals, sea turtles, fish and other wildlife.

Oceana is working to halt the use of seismic airguns, and stop the expansion of dangerous offshore drilling.

This page shows the groundswell of opposition to seismic blasting in East Coast states.