Seismic Testing Vessel Locator

When the high-energy research is underway, commercial boat traffic and SCUBA diving operators will be encouraged to remain out of the active survey area and at least several miles away (two miles ahead, 3 miles to the sides, 5.5 miles to the rear) from the research vessel. PG&E recommends these buffer zones to avoid possible entanglement with the survey equipment and to prevent divers' potential exposure to the undersea sound waves generated by the survey. Access to marine ports will not be impacted by the work and inactive survey areas will remain open to traffic.

Under a recent proposal submitted to the California Coastal Commission the first phase of the high-energy offshore seismic survey will be conducted from November through December of 2012 (PDF, 3.1 MB), and the second during the same time period in 2013 (PDF, 3.1 MB).

The 2012 survey is expected to last approximately 12 days (9 days of active survey) and will focus on studying portions of the Hosgri, Los Osos and Shoreline fault zones in the region of Estero Bay. The survey will not overlap into the Point Buchon Marine Protected Area.

Should PG&E be provided with the necessary permits to conduct this phase of the proposed survey, a real-time location of the research vessel will be available at, using the search term “M/V Marcus Langseth.” The marine coordinates for the proposed 2012 survey area are included in the below map.

Download map (PDF, 604 KB)

Seismic Survey Safety & Monitoring

PG&E is committed to conducting the 3-D high-energy offshore seismic study safely and in an environmentally responsible manner.

Learn about the safety measures

Learn about the marine monitoring program

Learn about SSHAC (Senior Seismic Hazard Analysis Committee)

Stay Up-to-Date on the 3D High-Energy Survey

PG&E is committed to keeping the public informed of project activities and to providing information to interested parties as these surveys progress.

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