Researchers document widespread methane seeps off Oregon coast
May 31, 2018 by Mark Floyd, Oregon State University
For the past two years, scientists from Oregon State University and the National Oceanic and Atmospheric Administration (NOAA) have surveyed the Pacific Northwest near-shore region mapping sites where underwater bubble streams signify methane gas is being released from the seafloor.
And what they have found is eye-opening. Since the first evidence of underwater methane was discovered in the late 1980s, only about 100 "seep sites" had been identified along the Northwest coast through 2015. They often were discovered by accident, when fishermen would spot anomalies on their fish-finders that turned out to be acoustic reflections of the bubbling methane gas.
Read more at:
https://phys.org/news/2018-05-document-widespread-methane-seeps-oregon.html#jCp