Methane seeping from fault off Del Mar
Written by
Gary Robbins
7 a.m., July 26, 2012
The Scripps Institution of Oceanography says that it has discovered "convincing evidence" that methane is seeping from a sub-sea earthquake fault about 20 miles west of Del Mar, the first leak of its kind found off San Diego County.
Graduate students working from the research vessel Melville made the discovery 3,400 feet below the ocean's surface, above the San Diego Trough, a fault zone that extends for about 93 miles in a line that runs from North County into Mexican waters. Seismologists say the fault is capable of producing quakes ranging in magnitude from 6.0 to 7.7...
